Here you will find the main characters of ''WesternAnimation/TheLandBeforeTime'' films, as well as minor characters of varying importance. Characters are listed under their category of debut appearance.

[[folder:The Gang of seven]]
[[caption-width-right:300: The main cast of the Land Before Time series.]]

A general list of tropes pertaining to the group of protagonists in the Land Before Time movies and TV series. They are: Littlefoot, Cera, Ducky, Petrie, Spike, Chomper, and Ruby.
* AmazingTechnicolorWildLife: While the original five are all right, mostly being earth tones, for some reason Chomper is purple and Ruby is pink with hot-pink spots.
* BigDamnHeroes: Constantly, for various reasons.
* BrotherSisterTeam:
** Ducky and Spike
** Ruby and Chomper are also sort of this.
* CallARabbitASmeerp: The kids are, respectively, a 'Longneck', a 'Threehorn', a 'Flier', a 'Swimmer', a 'Spiketail', a 'Sharptooth', and a 'Fast Runner'.
* EstablishingCharacterMoment:
** A newly hatched Cera headbutts her way out of her egg.
** Ducky jumps around while she's barely out of the egg, follows an insect around, then [[CuriosityKilledTheCast peers curiously]] into [[FearlessFool the mouth of a snapping turtle]].
** Spike [[BigEater eats his own nest]].
** Petrie falls screaming from a tree, gets tossed around a bit, then excitedly asks if he flew.
* FightingTheLancer: Littlefoot and Cera's fights in the first, second, and fifth films.
* FireForgedFriends: The classic lineup.
* FiveManBand: Formerly this, but gained two members in the TV show.
* GriefSong: 'Always There' (the final verse of which Littlefoot sings about his mother) from the fifth film is part grief song and part lullaby; along with 'Bestest Friends' from the tenth movie and 'If We Hold On Together' from the first movie, one of the best songs the long and musical series has ever produced.
* GroupHug: At several points, but most notably in the last shot of the first film.
* HeadbuttingHeroes: Littlefoot and Cera avert this in the usual sense (except in the first movie, where it's played straight, and very briefly in film five), but the trope holds true in the literal sense: at several points they've actually butted heads.
* InterspeciesFriendship
* KidHero: It's no question that all seven of them fit, but in terms of ages, it's never definitively stated. Ruby is assumed to be the eldest of the gang, while Cera claims to be the oldest of the original five. The order of Littlefoot's, Petrie's, and Ducky's births seems unclear. The only order that is definitely known is that Chomper is the youngest and Spike is the second youngest.
* LikeBrotherAndSister: Both Littlefoot and Ruby act like older siblings to Chomper.
* MasculineGirlFeminineBoy: Littlefoot is soft spoken and polite. Cera is snarky and brash.
* NaughtyIsGood: Rarely obey their parents' rules. Then again, [[AdultsAreUseless considering not one of their parents rules has ever shown to help with anything]], you can't exactly blame them.
* {{Nice Job Breaking It Hero}}es: Many of their adventures involves one or all of them screwing up in some way, and then rushing to fix their mistake.
* OddFriendship: A soft spoken Apatosaurus, a hot headed Triceratops, a happy-go lucky Hadrosaur, a panicky Pteranodon, and a mute Stegosaurus somehow make a cohesive and tight-knit group. It gets even more bizarre when a friendly Tyrannosaurus and a whimsical Oviraptor get added to the crew.
* PragmaticHero: All of them; they're not adverse to fighting dirty when confronted with sharpteeth.
* PromotedToParent: In the first sequel, the gang ends up having to raise the newly hatched Chomper until his real parents come to claim him. And Ruby is something of this by the series.
* RagTagBunchOfMisfits: A tastefully done example, though.
* TrueCompanions
* UnusualAnimalAlliance
* VitriolicBestBuds: Littlefoot and Cera.
* WhenImGoneSong: Inverted with 'Bestest Friends' from the tenth film (which is more of a ''[='=]When You're Gone[='=] Song'' considering the context).

!!''The Land Before Time'' (first film)

[[folder:Littlefoot - ''Apatosaurus'']]
[[caption-width-right:236:"We did it! We did it together!"]]
A young male Apatosaurus born in the desolate lands east of the Great Valley. He's the main protagonist of the Land Before Time series. He lives in the Great Valley with his Grandparents and best friends.

Appears in all fourteen films and the TV series.

-->'''Voiced by:'''\\
Gabriel Damon (original film)\\
Scott [=McAfee=] (''II-IV'')\\
Brandon Lacroix (''V'')\\
Thomas Dekker (singing in ''V'', speaking in ''VI-IX'')\\
Alex Medlock (''X'')\\
Aaron Spann (''XI'')\\
Nick Price (''XII'')\\
Logan Arens (''XIII'')\\
Cody Arens (''XIII'' and TV series)\\
Anthony Skillman (singing in ''XIII'' and TV series)\\
Felix Avitia (''XIV'')
* {{Badass}}: Dude once threw himself off a cliff, into shark-infested waters, ''after'' having escaped from a Gigantosaurus, to save Chomper without a second's hesitation. Now that's hardcore.
* BewareTheNiceOnes: Qualifies as this in the first movie. After dealing with Cera's attitude for a while and then her remark about his mother being stupid, Littlefoot snaps at her to take it back, resulting in a fight.
* BigBrotherInstinct: Towards Chomper and Ducky.
* DeathGlare: Gives this to Cera in "The Great Day of the Flyers" when she seemed reluctant in rescuing Guido from the Mysterious Beyond.
* DisappearedDad: Played straight until The Land Before Time X: The Great Longneck Migration.
* TheHeart: Along with Ducky.
* TheHero
* HerosJourney: At the beginning of the first movie, Littlefoot is a friendless, naïve child who's very much dependent on his mother to survive. By the end, he's become a strong, wise leader with more friends than he could have ever dreamed of.
* HeroicBSOD: After his mother dies, Littlefoot goes into a deeply depressed state. He refuses food when it's offered to him and seems to lose much of his will to find the Great Valley. The two things that snap him out of it is a chance encounter with the wise Rooter and running into another lost child like himself: Ducky.
* HeroWorshipper: For Doc in Film Six. He spends a good chunk of the movie following him around and is more than enthusiastic about Doc saving his life multiple times. However, he redirects his hero worship to his grandfather.
* HowDareYouDieOnMe: While talking with Rooter, Littlefoot tearfully says his mother should have known better than to fight the black sharptooth. This is likely just a statement out of intense grief, as her death leaves him completely alone in the world.
* ItsPersonal: Not outright stated, but when the opportunity to kill Sharptooth appears, Littlefoot is the first to take it. Less so in the original ending - where he discovered the Great Valley and then went back to rescue the others - where it was more to prevent Sharptooth from following them into the Great Valley.
* KickTheDog: Minor example. In the first film, after Cera insults his mother and [[NoHoldsBarredBeatdown soundly beats him]], and the group decides they would rather go with Cera, Littlefoot is so angry he leaves without another word. Not so bad on its own, except he notably ignores Petrie when he desperately tries (and fails) to follow and ''begs'' him to wait.
* TheLeader: Classic Type II leadership.
* NervesOfSteel: If something's going wrong, Littlefoot's generally the one who keeps his head together.
* NiceGuy: Easily the kindest and most levelheaded of the main cast.
* OnlySaneMan: Usually. He does his fair share of unreasonable things as well.
* RaisedByGrandparents: After Littlefoot's mom dies, his maternal grandparents assume guardianship of him.
* RedIsHeroic: His eyes are a shade of reddish brown that varies anywhere from mahogany to maroon between movies.
* ScrewTheRulesImDoingWhatsRight: Frequently breaks the rules in order to fix a problem that the adults won't.
* ScrewThisImOuttaHere: After Cera insults his mother and then adds injury to insult by soundly defeating him in a NoHoldsBarredBeatdown, Littlefoot is ''not'' happy when the others say they would rather go with Cera since her way is "easier."
* SiblingsWanted:
** In the 9th film, Littlefoot laments that he has no brothers or sisters to play with. One movie later, he get's an adopted brother: Shorty.
** Chomper might technically be called his 'godbrother', considering he oversaw his birth.
** Mo and Littlefoot declare themselves [[BloodBrothers 'Mud Brothers']].
* StreetUrchin: The dour conditions of Littlefoot's first years of life are a clear metaphor for being born into poverty, and when he loses his mother, he perfectly fits the description of a desperate street orphan.
* RedOniBlueOni: The calm, reasonable Blue to the hot-headed Cera's Red.
* SympathyForTheDevil: Given what the original Sharptooth did to him, his friends, and his family, Littlefoot has plenty of reasons to fear and hate the newly hatched Chomper for what he is. However, he refuses to forsake a newborn child for what the rest of his kind has done, and is the most vocal proponent in the group to caring after him.
* TertiarySexualCharacteristics: Inverted: a notable part of Littlefoot’s design is his long, feminine eyelashes, despite being a boy.
* TrademarkFavoriteFood: [[MemeticMutation Mutha fuckin' treestars, bitch!]]
* UndyingLoyalty: He will ''never'' abandon his friends and family.
* WhatTheHellHero: In ''Invasion of the Tinysauruses'', Littlefoot accidentally knocks all of the fruit off of a special tree that no one is to eat from until everyone is there to share it. He proceeds to lay the blame on the innocent Tinysauruses, and the rest of the Valley inhabitants try to chase away and destroy the innocent micro-dinos. When Littlefoot admits he lied, ''everyone'' gives him a disbelieving reaction.
* WiseBeyondTheirYears: Played fairly realistically. While he's still clearly a kid at heart and prone to making mistakes, his values, beliefs, and sense of duty are very advanced for his age.
* WouldHitAGirl: To be fair, the girl in question ''can'' shatter rocks with her ''head''.

[[folder:Cera - ''Triceratops'']]
[[caption-width-right:350:"Threehorns never play with Longnecks!"]]
A hot-headed female Triceratops. She's one of the main characters throughout the series. She lives in the Great Valley with her father, stepmother, and half sister.

Appears in all fourteen films and the TV series.

-->'''Voiced by:'''\\
Candace Hutson (original film, ''II-IV'')\\
Anndi [=McAfee=] (''V''-present)

* AbsenteeActor: She is absent from the final episode of the TV series.
* ActionGirl: When you can shatter rocks with your head, you've earned this title.
* BigSisterInstinct:
** Towards her baby sister Tricia, as well as her friends.
** She's kind of a grey area for her niece and nephew, Dana and Dina, since she often gets annoyed by their antics. However, she still loves them and freaked out when they disappeared.
* BreakTheHaughty: She spends most of the first film bragging about how she can take care of herself...until she nearly gets everyone killed following her way.
* CantLiveWithThemCantLiveWithoutThem: Despite constantly complaining about them, she seems to genuinely value her friends. Much more literally in the first film, when she ''despises'' the group's company thanks to her FantasticRacism, but has to stick together to avoid starving, freezing, or getting eaten. [[note]]They help her at least three times. Not only do they accept her into the group and let her travel with them after she meets Sharptooth, but they give her some of the "green food" they got off a tree when she's unable to get some down herself; they cuddle with her at night so she wouldn't be cold and alone, and finally they save her from the pack of Pachycephalosauruses that were about to eat her after she went the wrong way at the volcano valley.[[/note]]
* CatchPhrase: In the TV series: "I'll believe it when I see it."
* ChangedMyMindKid: Returns to the group in the last minute at the climax to help them defeat Sharptooth.
* DaddysGirl: She is close to her father, which makes sense because of her mother's disappearance. Her relationship with him is part of the reason why she's so stubborn and tomboyish.
* DeadpanSnarker: A big one in the sequels and TV show. Provides a lot of the funnier lines in the series as a result.
* DirtyCoward: In the first film. Brags about how brave she is when there's no enemy around to prove her mettle, and even headbutts targets she doesn't think can/will hit back (her sisters and parents when she's born, insects, frogs, what seems to be a dead Sharptooth...), but the second she's faced with something that can harm her (lightning, a very much alive Sharptooth...) she runs screaming.
* FantasticRacism: Especially in the first film. [[DefrostingIceQueen She mellows pretty fast, though.]]
* FantasticSlur: In the first film. And unlike Petrie, she's ''not'' an InnocentBigot.
-->'''Cera:''' My father told me that ''flatheads'' had very small brains.
* GreenEyedMonster: Cera seems to get extremely jealous when an outside character hogs all of Littlefoot's attention. This is most visible with Ali and Mo. And again with her half-sister Tricia.
* HairTriggerTemper: It doesn't take much to anger Cera. But this is toned down greatly in the sequels... unless her friends or her baby sister are being threatened. Interestingly, when Anndi McAfee started voicing her, she became somewhat more aggressive.
* IneffectualLoner: In the first movie, before learning ThePowerOfFriendship and becoming part of the group. In later movies she still has a tendency to storm off by herself after disagreements with the group, but her leave is never permanent.
* JerkWithAHeartOfGold: She's bossy, she's egotistical, she's short-tempered, and she'll always come through for her friends. Although in the first film she was bordering on JerkAss, only just redeeming her self in the final act.
* KickTheDog: In the first movie, after she [[UngratefulBastard insults Littlefoot's mother]] and the two fight, the film makes it clear that Cera [[CurbStompBattle won a swift and decided victory.]] However, rather than letting Littlefoot walk away with some dignity, Cera rubs salt in the wound by delivering one last blow after his back was turned and he had given up, then gloats with a triumphant "Ha!" Littlefoot is so angry afterwards that he ''cries'' with frustration and helplessness, and the film makes it clear that that was a low blow even for her.
* KnowNothingKnowItAll: In the first film, she constantly brags to the others about how she alone knows how to do things (how to get across the chasm, how to get green food, how to reach the Great Valley), and she's almost always ''wrong.''
%%* TheLancer
* MissingMom: At the beginning of the movie, Cera is seen with both of her parents, but at the end, her mother is nowhere to be seen [[WhatHappenedToTheMouse and is never seen nor mentioned in the sequels]].
* NeatFreak: Cera hates getting covered in muck or foul substances of any kind, and usually puts up quite a fuss if the journey requires it of her. This also applies to 'stinkweed', which she's forced to cover herself with in films five and fourteen to hide her scent from sharpteeth.
* RedOniBlueOni: The Red to Littlefoot's Blue.
* TokenEvilTeammate: In the first film. In some ways, she is actually ''more'' antagonistic than Sharptooth!
* TomboyAndGirlyGirl: Tomboy to Ducky (and later Ruby's) Girly Girl.
* {{Tsundere}}: She's stubborn and arrogant, and often hides her true feelings behind sharp-tongued rudeness.
* UngratefulBitch: For most of the first movie, she remains prejudiced against longnecks and goes so far as to call Littlefoot's mother ''stupid'' even after she'd given her life to save her and Littlefoot from Sharptooth. Like many other negative traits, this too fades out as time goes.
* UseYourHead: She is a Triceratops, after all.
* WelcomeBackTraitor: She's accepted as a friend after she helps to kill Sharptooth, even though she'd left Ducky, Petrie, and Spike to nearly die awhile back. Then again, Littlefoot was almost as bad, seeing as he used Ducky as bait for the Sharptooth.
* WhyDidItHaveToBeSnakes: Cera doesn't do too well when it comes to cliffs, chasms, and anything involving crossing them. Unfortunately, they face this dilemma at least once a movie.

[[folder:Ducky - ''Parasaurolophus or Saurolophus'']]
[[caption-width-right:350:"Yep yep yep!"]]
A cheerful female hadrosaur. She's one of the main characters throughout the series. She lives in the Great Valley with her mother and siblings.

Appears in all fourteen films and the TV series.

-->'''Voiced by:'''\\
Judith Barsi (original film)\\
Heather Hogan (''II-IV'')\\
Aria Curzon (''V''-present)

* ActionGirl: Her attempt to bait the sharptooth in the original definitely counts as this.
* BadassAdorable: Don't let her size fool you. If you're threatening someone she cares about, especially her little brother, she ''will'' stand up to you.
* BigSisterInstinct: She loves Spike to death. She even started attacking a ''T Rex'' when he was paralyzed with fear.
* CatchPhrase: "Yep yep yep!" Sometimes modified to "Nope nope nope."
* CheerfulChild: Ducky is almost always happy and very excitable.
* TheChick: Ducky is the more girly of the groups females, in contrast to Cera's tomboyishness.
* CuddleBug: Ducky tends to be pretty liberal on initiating physical contact with people, and often grabs their hand, tail, appendage, or even pull them into a hug without any warning. The usual recipient of this is Spike, but she's also done it to Littlefoot, Petrie, and Chomper.
* DamselInDistress: Frequently fits this role.
* DisappearedDad: Her father appears in the first installment but vanishes in the sequels. Granted, this ''might'' be due to what happened to [[RealitySubtext Judith Barsi at the hands of her father...]]
* TheHeart: Along with Littlefoot.
* JerkassFacade: In movie eight, Ducky attempts to pretend that she doesn't care about Spike when he starts giving his new friend Tippy more attention than her. In one scene, where Petrie casually mentions Tippy's herd is going away, the facade instantly breaks and she joyfully hugs [[CrowningMomentOfFunny a very confused looking Petrie.]]
* ManicPixieDreamGirl: Platonic version. When they first meet, Ducky pulls Littlefoot out of his long-standing depression (from losing his mother and being rejected by Cera) due to her cheerful, sunny disposition.
* MassiveNumberedSiblings: Besides Spike, Ducky hast at least 3 other sisters, but in movie six, she mentions that she was originally part of a nest of 13 twins, so she understands twin talk very well.
* MotorMouth: A mild example in the first movie, mostly due to her many verbal tics and outgoing personality, which goes along with the original name for 'swimmer': Bigmouth.
* NiceGirl
* NotSoInnocentWhistle: While trying to muster up the nerve to call Sharptooth's attention to her, she hums nervously under her breath.
* PlatonicLifePartners: With Petrie.
* SpannerInTheWorks: It's quite amazing how such a little girl can cause so many problems for so many different villains. It's also the primary cause for her DamselInDistress role.
* TeamMom: She always comforts and pep-talks everyone, and her plucky personality usually rubs off on everyone around her.
* TinMan: In ''The Big Freeze'', Ducky had to ask Cera what the strange emotions she was feeling towards Spike's constant snoring and keeping her awake were. When Cera told her she was feeling angry, Ducky was mystified, because she had never felt anger before, and Cera has to teach her (In song, no less), how to express anger.
** This is probably referring to explicit anger, as she's clearly shown to display annoyance and dislike before this.
* TomboyAndGirlyGirl: Girly Girl to Cera's Tomboy, although she's pretty adventurous and is only really a Girly Girl when compared to Cera.
* TreeCover: Her smalls size means she often walks in on important conversations unnoticed. See SpannerInTheWorks.
* VerbalTic: Ducky has several. The first and most widely known is her tendency to repeat yes or no three times at the end of a sentence for emphatic effect. She does the same for 'he/she/it does' and 'he/she/it is', except she only repeats these phrases twice at the end of a sentence. Finally, she'll occasionally add needless tense modifiers at the end of words, resulting in phrases like 'scardeded' and 'foundeded'.
* WhatTheHellHero: The TV episode "Search for the Sky Colored Stones" shows that Ducky isn't without a dark side. During a hunt for sky colored stones (geodes), her brother gets stuck in a cave opening, and instead of running off to get help she proceeds to find and hoard all the geodes in the cave for herself, intentionally misdirects Ruby and Cera so they never find any themselves, and generally acts like a sneaky, paranoid nutcase.
* WhyAreYouLookingAtMeLikeThat: When Littlefoot explains his trap for Sharptooth, he realizes that they'll need bait to lure him into position. Cue a smiling head turn towards Ducky, the only one in the group who doesn't have a job yet. Naturally, she doesn't seem particularly thrilled, but seems to agree to it in the end. To give this context, it was a far safer job for her to do than it would been for the other three, given she just needed to lead the BigBad to a pool of water that she could swim in and he couldn't.

[[folder:Petrie - ''Pteranodon'']]
[[caption-width-right:300:"You've got a nice flat head, Flat Head."]]
A panic-prone male pterosaur. He's one of the main characters throughout the series. He lives in the Great Valley with his mother and siblings.

Appears in all fourteen films and the TV series.

-->'''Voiced by:'''\\
Will Ryan (original film)\\
Creator/JeffBennett (''II''-present)
* AcrophobicBird: Grows out of it by the end of the first movie, for the most part.
* {{Cloudcuckoolander}}: Has a pretty vivid imagination.
* CowardlyLion
* CrouchingMoronHiddenBadass: Typically overcomes his fears during life-or-death situations, only to immediately react in horror afterwards that he ever did something so dangerous.
* ADayInTheLimelight: He is the main character of "The Great Day of the Flyers".
* DidYouJustFlipOffCthulhu: When Petrie finally learns to fly, he celebrates by throwing rocks and laughing at the murderous sharptooth at the bottom of the ravine. [[spoiler: This cockiness very nearly ends in tragedy when the sharptooth tries to pull him down with him.]]
* DisappearedDad: His father is never seen, and we only ever see his mother and his many, [[AmazingTechnicolorWildlife multicolored]] siblings. Heck, unlike Cera and Ducky's unseen parents, he's not even seen in the original!
** In [[HilariousInHindsight hindsight]] this actually makes sense; recent evidence suggests that male ''Pteranodon'' had little to no involvement with the raising of their young. Of course, [[ScienceMarchesOn neither did the females]] but it still justifies the scenario a bit.
* DisneyDeath: [[spoiler:He nearly dies when they kill Sharptooth, but he ends up ok.]]
* EasilyImpressed: Probably the easiest member of the group to dazzle. This especially shows in ''The Stone of Cold Fire'' where we see him being utterly enthralled by his uncle's tall tales.
* HeroWorshipper: Idolizes his uncle and takes everything he says as absolute fact. Unfortunately, [[EvilUncle his uncle isn't the best of role models]].
* InnocentBigot: When Petrie first meets him, he refers to Littlefoot as a 'flathead'. Given Littlefoot's reaction to this term, Petrie's lack of racist tendencies, and the fact that Petrie stops using this term soon after it's introduced, he may have unknowingly been using a racial slur that he innocently picked up from somewhere else.
* PlatonicLifePartners: With Ducky.
* PluckyComicRelief: The official website refers to him as "the clown of the group".
* PteroSoarer: The original movie averted this slightly as while he was still outdated by modern standards the animators gave him features in accordance to then new theories like walking on all four. Unfortunately, the sequels throws all of those features into the trash bin.
* TheSmartGuy: Though not so much because he's the most intelligent as he is the most cautious.
* SuperGullible: He pretty much says word for word that'll he'll believe anything.
* ThirdPersonPerson
* ToothyBird: While some pterosaurs ''do'' have teeth, ''Pteranodon'' (Toothless Wing) aren't among them.
* VegetarianCarnivore: Petrie is a Pteranodon, which are known to dine on fish. Yet, he and other "fliers" are shown eating plants and there's no explanation as to why.

[[folder:Spike - ''Stegosaurus'']]
[[caption-width-right:300: [[InnerMonologue 'Nothing like a treestar to start the day right.']]]]
A quiet, ravenous male stegosaurus, and the adopted brother of Ducky. He's one of the main characters through out the series. He lives in the Great Valley with his adopted family.

Appears in all fourteen films and the TV series.

-->'''Voiced by:'''\\
Creator/RobPaulsen (''II''-present, excluding ''VI'')\\
Creator/JeffBennett (''VI'')

* AbsenteeActor: He doesn't appear in the final episode of the TV series.
* BigBrotherInstinct: A unique case of a younger sibling having this.
* BigEater: This and his speechlessness being his signature traits.
* TheBigGuy
* GentleGiant: Well, to the characters that are smaller than him.
* GodGuise: In the TV episode "Stranger From the Mysterious Above", a colony of horned gophers thought he was "The Big Wise One" from their religion.
* HappilyAdopted: By Ducky's family.
* InnerMonologue: Through out most of the TV episode 'Through the Eyes of a Spiketail', we see the world through Spike's perspective and become privy to more details about his personality through his thoughts and feelings.
* OOCIsSeriousBusiness: Spike is an elective mute: he ''can'' talk, but chooses not to, even when it's very inconvenient. The only times he's ever seen speaking are in life-or-death situations.
* ObliviousAdoption: Deals with issues related to this trope in ''The Big Freeze''.
* PlotRelevantAgeUp: He is born in the middle of the film while the rest of the gang have grown up to be kids, but grows to their age in a matter of seconds.
* PurpleEyes: During 'Through the Eyes of A Spiketail', a POV shot is given from his point of view, where everything he sees takes on a purple tint.
* ReluctantHero: He apparently isn't enthusiastic about his friend's frequent adventures outside the Great Valley, and wishes his friends could be more content with staying home and eating.
* {{Scatting}}: Keeping in line with his muteness, he scat sings during musical numbers.
* SmarterThanYouLook: In one of the TV episodes, Spike's thoughts are revealed. He's actually quite observant, and secretly rolls his eyes whenever Littlefoot and Cera get into a pointless argument.
* TastesLikePurple: He can apparently "hear" songs from plants, and can even identify them based on their different tune. Given his unusually good smelling abilities shown through out the series, it's possible that Spike is demonstrating an olfactory form of synesthesia.
* TheVoiceless: Except for ''two'' instances where he yells Ducky's name when she's in danger, and when he yells "Mama!" as he nearly drowns in a lake.
** Later revealed that he can talk but simply chooses not to.
** And, when he does "speak", it's usually [[TheUnintelligible unintelligible mumbling]]. Interestingly enough, in one episode of the series, it's shown that his thoughts are quite sophisticated.
** In several of the songs, however, he can be clearly seen and heard humming and hilariously enough, scat-singing at a few points.

[[folder:Sharptooth - ''TyrannosaurusRex'']]
A vicious, relentless Tyrannosaurus who acts as the primary antagonist of the first film. He's responsible for the death of Littlefoot's mother. [[spoiler: He's supposedly killed by Littlefoot and his friends after they drop a rock on him, knocking him into a deep water hole.]]

Appears only in the first film.
* AdaptationExpansion: In the movie it's unclear whether Sharptooth is a NonMaliciousMonster or not. The book shows some events from his perspective, and gives him an arrogant, vain, and vindictive personality on top of his predatory instincts.
* AdaptationalVillainy: In the movie, he's mostly portrayed as an instinctive force of nature, albeit with more personality than one might expect. The novelization, however, depicts him as being like a prehistoric SerialKiller.
* AmbiguouslyEvil: Is he a sadistic, vengeful murderer, or just a predator desperate for food? Throughout the movie, it remains up in the air.
* AxCrazy: Is noticeably unhinged and needlessly violent even for a ''Tyrannosaurus''. In the novelization, this is even more evident as instead of a simple predator, he is a vengeful, spiteful and sadistic SerialKiller in the skin of a dinosaur.
* {{Badass}}: Being a TyrannosaurusRex helps, but even for a T-rex, he possesses unnatural strength and durability.
* TheBerserker: His face is always locked in one single expression; pure, unadulterated, pissed-off rage.
** At one point, Mama Longneck smacks Sharptooth with her tail and he smashes into a rock. He responded by ''pulverizing the rock with repeated headbutts before he does anything else.''
* BigBad: Considered this in the first film.
* CarnivoreConfusion: He is a ''T. rex'' hunting sentient baby dinosaurs.
* DeathGlare: Shoots Petrie a murderous glare after the pterosaur hits him with a pebble.
* TheDreaded: When even baby dinosaurs know your name, you're this. The book mentions he'd been following the herds for some time, preying on stragglers and building a reputation.
** Also, when Littlefoot's mother intervenes, she orders Littlefoot to run. This is notable because baby animals usually stay near their parents during such instances (such as Wildebeest and Bison), and the chances that Littlefoot could run into another hazard without her presence. It also indicates Littlefoot's mother knew she would likely loose the fight, and that no other hazard in the area was as dangerous as Sharptooth.
* DisneyVillainDeath: [[spoiler: Falls off a cliff into a lake and drowns. However, unlike most, his is an intentional one on the part of the heroes, though given the situation, it's hard to blame them.]]
* EatenAlive: [[FridgeHorror Possibly what he was doing to Littlefoot's mother during the fight]].
* EyeAwaken: When Cera uses his seemingly dead body to practise headbutting, his eye snaps open and stares at her, revealing he's still alive. Note that this is the eye that was stabbed with a thorn and was supposed to have been blinded.
* EyeScream: Littlefoot accidentally stabs him in the eye with a thorn while trying to escape, blinding him in that eye. The illustrations in the book and original cut of the film showed it bleeding afterwards.
* ForTheEvulz: Unlike most predators, he seems to kill other dinosaurs entirely because he ''wants'' to, not because he ''needs'' to.
* HandicappedBadass: The novelization reveals he was blinded in his right eye when Littlefoot accidentally [[EyeScream stabbed it with a thorn]]. Despite this, he apparently is still capable of seeing things around him perfectly fine.
* HeroKiller: Sharptooth not only survives being bashed into cliffs and falling into a ravine, but mortally wounds Littlefoot's mother - who, granted, puts up one heck of a fight - and almost kills the main group several times.
* ImplacableMan: One of the most notable in western animation. Borders on slasher villain territory.
* ItsPersonal: He hates Littlefoot because he accidentally blinded him on one of his eyes. He also hates Cera for headbutting him when he was unconscious. It's heavily implied that THIS and his hatred are the reasons why he is going to such extremes to kill dinosaurs that would be of little food value to him.
* KillItWithWater: [[spoiler:Meets his end when the heroes use a rock to topple him into a lake. Due to having stubby arms, he can't swim and drowns.]]
* KnightOfCerebus: Oh yes. The movie was very soft until he showed up. He is arguably the only villain who was treated seriously in the series.
* MadeOfIron: His stamina and strength were ridiculous enough, but he survived falling into a deep trench without any actual injury and can smash large rocks with his head with no pain involved.
* NonMaliciousMonster: Definitely averted; one of the things that made Sharptooth so incredibly terrifying was that he didn't just kill for food, he also killed for ''pleasure'' and more often, because he was ticked off.
* NotQuiteDead: Is seemingly killed when he falls off a cliff fighting Little Foot's mother. Cera finds out later on he survived and is ''ticked off!''
* {{Pride}}: The novel mentions that Sharptooth was extremely arrogant and vain, to the point where Cera headbutting him - which didn't hurt him in the slightest - pissed him off, and Littlefoot inadvertently stabbing his right eye with a thorn sparked a deep, intense grudge.
* RoaringRampageOfRevenge: In the book version, the reason he relentlessly pursues the protagonists is because when Littlefoot fled from him he sent a thorn flying into his right eye, half-blinding him. In most scenes of the film he has his right eye closed, which supports this.
* SuperPersistentPredator: Is dead set on killing the group. Justifed as only a few other dinosaurs are seen during the film, so they may just be the only thing to eat. [[RoaringRampageOfRevenge He also wants revenge]] on Littlefoot for [[EyeScream injuring his right eye]] and Cera for [[MinorInjuryOverreaction headbutting him when he was unconscious]].
* TheSociopath: A violent, sadistic, prideful, monster, that kills for sport.
* TakingYouWithMe: Bites down on Petrie's tail as he falls into the water.
* UnstoppableRage: He's in a psychotic fury for every moment of screen time. And it is ''terrifying''.
* TheVoiceless: Like almost every sharptooth in the series, he communicates solely with snarls, roars, and growls.
* WouldHurtAChild: Most definitely, as he literally spends his entire onscreen time trying to kill the five main characters, who happen to be baby dinosaurs.

[[folder:Mama Longneck - ''Apatosaurus'']]
[[caption-width-right:348: "Dear, sweet, Littlefoot, do you remember the way to the Great Valley?"]]
A wise, maternal Apatosaurus who deeply loved her only son, Littlefoot, and hoped to lead him to the Great Valley where he could grow up in safety. She dies midway through the first film from injuries sustained by Sharptooth. Bron was her husband.

Appears only in the first film.

-->'''Voiced by:'''\\
Helen Shaver (original film)\\
Creator/TressMacNeille (TV series)
* AlmostDeadGuy
* {{Badass}}: She fights off a Tyrannosaurus Rex. You can't get more badass than that. She doesn't fight off the sissy Rexes that you see getting stomped on by the Great Valley adults throughout the rest of the movies. She fights ''the original Sharptooth,'' who is NightmareFuel in the form of a carnivore and capable of ''leaping onto her back.''
* DeceasedParentsAreTheBest: Probably the most famous example after {{Disney/Bambi}}'s mom.
* DiedHappilyEverAfter: This is why her spirit never spoke to or appeared before Littlefoot again after helping him finally find the Great Valley. Her son was now in a land where he could grow up safe and not starve and was back in the care of her own parents whom she knew would care for and raise him well. Ultimately she could rest in peace now that had achieved everything she wanted for her child.
* FamilyUnfriendlyDeath: We never actually see what injuries lead to her death, and considering one of the scenes contains a [[ShadowDiscretionShot horrifying shadow shot]] of Sharptooth biting a chunk of flesh out of her back, it's probably better that we don't. What's more, there actually was film footage made depicting more of the the fight between her and sharptooth. Considering Don Bluth had this footage '''burned''', it's safe to say that her death was decidedly non-PG. Going by the footage of the shadow, Sharptooth wasn't just biting chunks of flesh from her back, [[EatenAlive he was eating them]]!
* HeroicSacrifice: It's obvious that she ultimately sacrifices her life to save her son.
* MamaBear: Oh yes. She protects her son by fighting off a bloodthirsty Sharptooth ''while an earthquake is tearing apart the land around her''.
* SacrificialLion: Dies protecting Littlefoot from Sharptooth; whatever chance she had to survive was destroyed by the earthquake that followed.

[[folder:Grandma and Grandpa Longneck - ''Apatosaurus'']]
Two elderly Apatosaurus who helped Mama Longneck raise Littlefoot since he first hatched. When she dies, they take to raising him in the Great Valley. Believed to be the parents of Mama Longneck, making them Littlefoot's maternal grandparents. They live in the Great Valley with their grandson.

Appear in all fourteen films and the TV series.

-->'''Voiced by:'''\\
Linda Gary (Grandma, ''II-IV'')\\
Miriam Flynn (Grandma, ''V''-present)\\
Kenneth Mars (Grandpa, ''II''-TV series)\\
Barry Bostwick (Grandpa, ''XIV'')\\
* AdultsAreUseless: Averted. They are the most level-headed, intelligent characters in the entire series, the only reason they aren't a bigger help is that they have to deal with the rest of the adults.
* AdultFear: In the first movie, they were separated from their daughter and grandson during an earthquake. If Littlefoot hadn't made it to the Great Valley on his own, they never would have found out what happened to either of them. The sequels occasionally touch on their fear of losing Littlefoot too.
* {{Badass Grandpa}}rents: Grandpa can keep up with Doc when it comes to fighting Sharpteeth. And in a battle in a later film, he and Grandma team up to [[CurbStompBattle beat a sharptooth into the ground.]]
* BattleCouple: There are multiple occasions where they've worked together to fight off an enemy.
* BigDamnHeroes: Once in a while.
* BigGood: Grandpa appears to be the highest authority in the Great Valley.
* CoolOldGuy: Grandpa Longneck can hold his own against a Sharptooth. Not bad for an old dinosaur.
* CoolOldLady: Grandma Longneck has been shown to do the same.
* GoodParents: Not only to Littlefoot, but they were also this to their daughter.
* HappilyMarried: They're very kind and loving to each other.
* OutlivingOnesOffspring: Mama Longneck was their daughter. Their own grief over her loss is almost never touched on, but there is a moment in the second movie where they tell Littlefoot that he is all they have.
* ParentalSubstitute: They've acted as Littlefoot's parents since the first film.
* TheStoryteller: In the TV series it's revealed that, when he was young, Grandpa Longneck was very reputable 'Story Speaker', a master of Longneck OralTradition storytelling.
* VitriolicBestBuds: Grandpa and Topsy.
* TheVoiceless: Both in the first film. Grandma Longneck also doesn't speak in film 12, and Grandpa Longneck doesn't speak in film 13.

[[folder:Topps / Topsy / Mr. Three Horn - ''Triceratops'']]
[[caption-width-right:210:"Come Cera, three horns never play with long necks."]]
An aggressive male Triceratops with deep seated prejudice against dinosaurs other than his own kind. He's Cera and Tricia's father, and Tria's husband. He lives in the Great Valley with the rest of his family.

Appears in every film except the fourth, and in the TV series.

-->''Voiced by:''\\
Burke Byrnes (original film)\\
John Ingle (''II''-TV series)\\
George Ball (''XIV'')
* BigBadEnsemble: While the bullies are the main antagonists to the children and the drought is the major threat to the Great Valley in ''Time of the Great Giving'', he begins causing problems all on his own when he takes charge of the dinosaurs' limited water supply.
* CharacterizationMarchesOn: His racism and hatred is definitely toned down after the third film, in which he is saved by Grandpa Longneck and comes across a parent as bad as he is.
* CoveredInMud: In "Great Day of the Flyers".
* DividedWeFall: His stubbornness finally gets him and Cera into trouble in ''Time Of Great Giving'', and they end up getting saved by Grandpa Longneck.
* FantasticRacism: Prejudiced against longnecks. Seems to get along with Grandpa Longneck in the sequels well enough, however.
* FreudianExcuse: The reason why he acts like a grump is for the sake of his family and because his own father was as grumpy as him. [[FridgeHorror The absence of his wife and all of his children besides Cera from the second film onward may also explain it]].
* GrumpyBear: Perpetually.
* JerkAss: Is the one who taught Cera her FantasticRacism in the first film, and he repeatedly causes trouble for all the other grown-ups in the sequels and the series.
* JerkWithAHeartOfGold: He genuinely loves his daughter despite all his other flaws.
* TheLancer: He's second in authority only to Grandpa in the Great Valley, sometimes sharing the role of leader.
* MisterDescriptor: He's one of the only parents of the gang who's first name has been revealed: Topps. However, no one ever calls him this save for his wife's AffectionateNickname of 'Topsy', and instead just refer to him by his species.
* OppositesAttract: It might be hard to believe, but a guy as hard as stone eventually falls for a woman as sweet as sugar. In addition, she's the only one who can calm him down.
* PapaWolf
* TookALevelInKindness: After his CharacterDevelopment in the third film, he considereably tones down a bit. Even more evident after the birth of Tricia.
* {{Troll}}: While he shows admirable acceptance by not treating Chomper like a threat, he still has no qualms telling him blatantly untrue stories just to get a kick of how scared he can make him, nor has any problems openly mocking him for his tiny arms when he knows he's self-conscious about them.
* VillainSong: Not really a villain, just a an antagonist. 'I'm Tough' could be considered this in the third film, given what he was doing at the time.
* WellIntentionedExtremist: He will do anything to protect his family, going to violent lengths.

[[folder:Rooter - ''Scolosaurus'']]
[[caption-width-right:300:"It's nobody's fault. The great circle of life has begun. But see, not all of us arrive together at the end."]]

A wise, mysterious wanderer among the wastes of the mysterious beyond. His whereabouts are unknown.

Appears only in the first film.

-->'''Voiced by:'''\\
Pat Hingle
* {{Callback}}: Possibly one in movie ten. Bron tells Littlefoot that he learned of his mother's death from a passing dinosaur not long after the Great Earthshake, and that this dinosaur also mentioned that Littlefoot survived. Given the timing, this dinosaur was likely Rooter.
* DoNotGoGentle: Rooter's biggest impact in the series is helping soften the blow of Mama Longneck's death-- both for Littlefoot and the younger audience-- by confirming to Littlefoot that his mother will always be with him, and that the pain he feels right now will lessen in time.
* JerkWithAHeartOfGold: When he first runs into the crying Littlefoot, he treats him with gruff indifference. When he realizes the boy has just lost his mother, he immediately softens.
* TheObiWan

[[folder:Mama Swimmer - ''Parasaurolophus or Saurolophus'']]
The biological mother of Ducky and the adoptive mother of Spike. She's an adult of some standing in the Great Valley and commonly seen in meetings at the rock circle.

-->'''Voiced by:'''\\
* ADayInTheLimelight: Got some more attention in "The Big Freeze".
* GoodParents: All too happy to adopt Spike and is very loving to all of her kids (and there's like thirteen of them!)
* MamaBear: Won't stand for any harm coming to her kids. Seriously, this mother dives ''under ice and risks her life'' to save Spike.
* PinkGirlBlueBoy: She and her husband have this color scheme in the finale of the first film. She's given a more realistic green color from the second film onward.
* ThinkOfTheChildren: In her earlier appearances, Mama Swimmer tended to be this. She tells Spike and Ducky that Littlefoot is a bad influence in "Time of the Great Giving" and to keep away from him. Later on, she takes a more complex approach to this trope when she truly considers whether Spike would be happier with his own kind rather than with her in "The Big Freeze".

[[folder:Mama Flyer - ''Pteranodon'']]
Petrie's mother. She's an adult of some standing in the Great Valley and commonly seen in meetings at the rock circle.

-->'''Voiced by:'''\\
Creator/TressMacNeille (''II''-TV series)\\
Anndi [=McAfee=] (''XIV'')
* ADayInTheLimelight: Has a bit more focus in "Stone of Cold Fire" and then in "Great Day of the Flyers".
* DeadpanSnarker: Has her moments.
* GoodParents: Especially noticeable in "Stone of Cold Fire", where she makes sure to set a better example for her children than Pterano.
* MamaBear: Notice a pattern here? She flew through what was essentially a ''hurricane'' to find her missing son!
* OpenMindedParent: Especially noticeable in "The Great Day of the Fliers". She loves her son for who he is-- quirks and all-- and is supportive of him even when he doesn't seem to be doing well in his flying demonstrations.
* SiblingRivalry: Played with; she's set up to have something like this with Pterano, but she has enough faith in him to know that he won't let any harm come to Ducky. She still doesn't think too highly of him, though...
* StraightMan: Aside from Littlefoot's Grandparents, she's usually the most level-headed voice among the Valley's adults, and is less prone to wild accusations that tend to get thrown around whenever the Valley is facing a crisis.

!!The sequel films

[[folder:Chomper - ''TyrannosaurusRex'']]
[[caption-width-right:300:"Yep, it's me!"]]
A friendly young Tyrannosaurus who was hatched as an egg by Littlefoot and his friends. He later teaches himself the herbivore language, and becomes a speaking character by the fifth film. He and Ruby have been allowed to live in the Secret Caverns to keep safe from Red Claw, making him the only sharptooth living in the Great Valley. He becomes a main character in the TV series.

Appears in films two, five, fourteen, and every episode of the TV series.

-->'''Voiced by:'''\\
Creator/RobPaulsen (vocal effects in ''II'')\\
Cannon Young (''V'')\\
Max Burkholder (TV series)\\
Isaac Brown (''XIV'')
* AdorablyPrecociousChild: Especially evident in the TV series.
* AllOfTheOtherReindeer: It's not explored that much in the TV series, but many leaf eaters of the Great Valley don't trust him for being a sharptooth, and it's implied that this is the reason why he and Ruby have to sleep in the secret caverns separated from the rest of the residents. Chomper spends almost all of his time with his TrueCompanions, so it rarely bothers him.
* AudienceSurrogate: Chomper wasn't around for most of Littlefoot's adventures, so he and Ruby receive a lot of exposition whenever they meet one of the characters from the sequels.
* BadLiar: When he and Ruby are suspected of being in the area, he actually shouts from their hiding spot:
-->'''Chomper''': "I don't know what you mean! We're not here!"
* BreakOutCharacter: Definitely the most popular character introduced outside of the original film.
* CarnivoreConfusion: Actually addressed. Normal Sharptooth would try to eat the group, but he resolves to only eat bugs in order to stay around his friends, though [[{{Squick}} they do find this disturbing as well]].
* {{Cloudcuckoolander}}: Sometimes. He tends to forget that his friends are leaf-eaters and offers them insects to eat. He also tends to be naive. Lampshaded by his parents in the fifth movie.
* CompensatingForSomething: On more than one occasion, he's shown to be very sensitive about being called 'little'.
* DeclarationOfProtection: He and Ducky get trapped on a rock out crop in the middle of a ravine. With a ''Utahraptor''. He assures Ducky that he'll protect her while openly declaring to the raptor that he will fight him if he tries to hurt her.
* DoesntTrustThoseGuys: He's a frequent victim of this trope. While the Great Valley seems to have largely accepted that he’s not like other sharpteeth, not everyone is entirely comfortable having him around. Several adults refuse to let him near their children, and some kids are still scared to death whenever he gets too close—including Perie’s own siblings.
* DoubleEntendre: He just ''loves'' having friends for dinner...
* EnfantTerrible: Averted, despite being an infant Sharptooth, he's a very nice guy. However he is often mistaken for this by dinosaurs that don't know him. In fact in one episode of the TV series spinoff, it almost gets him killed.
* FourFingeredHands: In his original appearance Chomper was correctly depicted with two claws on each hand, while in the fifth film, fourteenth film, and the TV series he gained a thumb.
* GuestStarPartyMember
* IAmWhatIAm: Says this word for word in the fifth movie, pointing out that nobody has any control over what they're born as, and that people of very different races can still be close friends.
* IJustWantToHaveFriends: He seems to have been very lonely on his island before his old friends stumbled upon it. He's less like this in the TV show, but he does seem still seem vulnerable to feeling like the odd one out.
* ManBitesMan: Chomper [[IncrediblyLamePun chomps]] down on Cera's tail (by instinct) in the second movie and an ''Giganotosaurus''[='=]s tail (to protect his friends) in the fifth movie.
* MySpeciesDothProtestTooMuch: His parents are the only Sharptooth he actually seems to like, otherwise he actually prefers to hang with the Great Valley dinos over his own kind. Probably because other adult Sharptooth seem to attack him on sight as well.
* NervousWreck: Not to the extent that Petrie is, but Chomper does have a habit of jumping to the worst conclusions when he's scared. After his first baby tooth fell out he thought that he was literally falling apart, and he assumed that Doc, the lone dinosaur and expert fighter of vicious sharpteeth, returned to the Great Valley with the intention to kill him, even though Doc couldn't have known he lived there in the first place. However, it makes sense that Chomper would be a bit worried about a supposed hostile longneck coming to the Great Valley after he was nearly killed by a herd of them when they also mistook him for a vicious sharptooth.
* NiceGuy: He's a member of the most feared and ferocious race of creatures in the Land Before Time world-- one of the same blood that killed Littlefoot's mother and nearly killed Littlefoot himself. And yet, he's one of the happiest and most gentle characters in the entire franchise (assuming you're not an insect).
* {{Omniglot}}: He's the only known Sharptooth to be able to speak Sharptooth and plant eater. This comes in handy at times. Most dinosaur adults seem suitably suprised upon learning of this.
* OutOfFocus: In ''Journey of the Brave''. Gets left out of the rescue mission, yet surprisingly this is not treated as an issue.
* RaisedByWolves: Raised by herbivores, specifically. Even though it was only for the first few days of his life, it's had a considerable impact on him.
* RedEyesTakeWarning: Averted; Chomper has very red eyes, yet he's a good and kind person. People who don't know him, however, tend to take the trope to heart as soon as they see him. It makes sense that Chomper has red eyes, he inherited them from his parents.
* RidiculouslyCuteCritter: In every appearance, but most obviously in the first one.
* SixthRanger: In animated series and all films beyond ''The Wisdom of Friends''.
* SpotlightStealingSquad: Anyone who doesn't consider him an EnsembleDarkhorse thinks of him as this in the animated series. Of all the characters, he has the most number of episodes focused around him.
* SuperGullible: He's young with a very trusting heart and a gentle dispostion, which makes him easy to fool. Mr. Threehorn and Cera in particular delight in terrifying him with untrue stories.
* TheyHaveTheScent: Chomper's incredible sense of smell comes in handy in both the TV series and ''Journey of the Brave'', both for finding lost members of the gang and detecting oncoming threats.
* UndyingLoyalty: Dedicates his life to an altered diet so he can stay friends with his leaf eater companions.
* VegetarianCarnivore: Played with, as he occasionally samples "green food" in an effort to fit in, but finds it disgusting.
* WideEyedIdealist: After feeling isolated at being the only sharptooth in the Great Valley, Chomper convinced himself that he could to teach sharpteeth from the mysterious beyond to be nice. It doesn't work and it almost gets him killed.
* YouCanTalk: Chomper was a silent character in "The Great Valley Adventure", as he had only just hatched. The gang is surprised to hear him speak to them when they reunite in "The Mysterious Island", and in the TV show Chomper constantly hears this reaction whenever he's introduced to a new character.

[[folder:Chomper's parents - ''TyrannosaurusRex'']]
[[caption-width-right:335:Mama Bear and Papa Wolf taken to deadly extremes.]]
A pair of large Tyrannosaurus' who are fiercely protective of their only son. They act as secondary antagonists in most of both of their film appearances. Their current whereabouts are unknown, but they live away from their son, who lives in the Great Valley.

Appear in films two and five.
* {{Badass}}: Well, they ''are'' T. rexes. After being initially injured by the Plated Sharptooth, Papa Rex stands up and ends the fight with one decisive blow of his tail. It also took a group of at least four adult leaf eaters to chase them off.
* BadassAdorable: And they're downright ''adorable'' when they're with their son.
* BattleCouple
* DeadpanSnarker: Chomper's father. "Sometimes I worry about that boy."
* GoodParents
* HappilyMarried
* HeelFaceTurn: Well sort of. It is revealed that they are not entirely villainous in ''The Mysterous Island'' but are still a danger to the heroes anytime they see them, until Littlefoot risks his life to save Chomper's. After that, they're much more friendly, with Chomper's mother managing to not complain (and smiling) as Cera hugs her leg.
* MadeOfIron: Much like all sharpteeth, nothing seems to be able to put them down.
* MamaBear[=/=]PapaWolf: They're very quick to come to their son's aid if he's in danger. Also part the reason they sent Chomper to the Great Valley in the series, to protect him from Red Claw.
* MonsterIsAMommy: They leave the Great Valley as soon as they find their son.
* OpenMindedParent: Mama Sharptooth gives a rather deliberate sounding DoubleEntendre when she finds Chomper hanging around with Littlefoot, suggesting she's aware of her son's [[IncrediblyLamePun taste]] in friends and doesn't seem particularly bothered by it.
* RedEyesTakeWarning: They aren't really villainous, but they are dangerous, and they have the eyes to match .

[[folder:Ozzie and Strut - ''Struthiomimuses'']]
A duo of egg stealers who infiltrate the Great Valley in order to prey upon the smorgasbord of eggs within

Appear in film two only.

-->'''Voiced by:'''\\
Creator/JeffBennett (Ozzie)\\
Creator/RobPaulsen (Strut)
* BigBrotherBully: Ozzie doesn't listen to Strut about his desire to eat plants and forces him eat a diet comprised of eggs.
* BigBadDuumvirate: Their theft of Chomper's egg is what brings his parents to the Great Valley.
* BumblingSidekick: Strutt mostly seems to go along with what Ozzy says, although he does come up with the idea that results in the two crossing the MoralEventHorizon.
* ButtMonkey: Both of them, though Strut usually gets the worst of it.
* {{Determinator}}: Ozzie.
* EvilBrit: Ozzie.
* ExitPursuedByABear: They get chased off by Chomper's parents in the end.
* LargeHam: Ozzie.
* LaughablyEvil
* JerkAss: Ozzie to Strut.
* NotSoHarmlessVillain: For most of the film, Strut was seen as the ButtMonkey and was constantly being pushed around by his older brother. However, he proves to be just as devious as Ozzie by suggesting they throw Littlefoot off the Great Wall.
* ThoseTwoBadGuys
* VegetarianCarnivore: Ozzie and Strut are both Struthiomimuses. Strut seemed more content with eating plants, while Ozzie seems obsessed with eating eggs. In reality, Struthiomimus and its relatives were omnivores, [[TooDumbToLive and having such restricted diets would probably be a death sentence.]]
* VillainSong: 'Eggs'.
* WouldHurtAChild: Not only does Strut suggest they kill Littlefoot by throwing him off of a cliff, Ozzie attempts to ''strangle'' Chomper, who had hatched just hours prior.

[[folder:Hyp, Nod and Mutt - ''Hypsilophodon'', ''Nodosaurus'', and ''Muttaburrasaurus'']]
[[caption-width-right:331: "Everything's better when you're big."]]
A group of three bullies who terrorize Littlefoot and his friends simply because they're bigger than them. They appear in film three and an episode of the TV series.

-->'''Voiced by:'''\\
Whit Hertford (Hyp, ''III'')\\
Mikey Kelley (Hyp, TV series)\\
Creator/JeffBennett (Mutt)\\
Creator/ScottMenville (Nod)
* AesopAmnesia: They're back to being troublemakers in the TV series, but at least seem to have learned somehwat.
* BigBadEnsemble: While they're the main antagonists to the children in ''Time of the Great Giving'', the bigger problems come from Topsy's taking charge of the valley and the drought itself.
* BrainsAndBrawn: Hyp's the brains, Nod and Mutt are the brawn, but especially Mutt.
* ButtMonkey: Mutt gets slapped around a ''lot''.
* DeadpanSnarker: Hyp is quite the wiseass before he mellows out.
* {{Delinquents}}
* FrameUp: Get Littlefoot in trouble by pushing him into the water off a low cliff, making the scare resource scarcer due to the big splash. Littlefoot being Littlefoot doesn't say it was them, just that he'd been playing and fell.
* FreudianExcuse: Hyp's dad was even more hardass than Topsy. [[CallingTheOldManOut And Topsy's on of the adults to seriously call Hyp's dad out on it.]]
* GangOfBullies
* BigThinShortTrio: Mutt (big), Hyp (thin), and Nod (short).
* HeelFaceTurn: They start out as a bunch of bullying jerks to Littlefoot and his friends, yet they do come through in the end and helps save everyone from the Sharpteeth.
* {{Jerkass}} --> JerkWithAHeartOfGold
* VillainSong: 'When You're Big', a possible contender for the best song in the series.
* WellDoneSonGuy: Hyp, to the point that he still idolizes his father, despite his abusive ways. This turns out to be why he's such a bully in the first place; it's the only way he can interact with others, because it's all his father ever gave him.

[[folder:Kosh / Mr. Clubtail - ''Ankylosaurus'']]
[[caption-width-right:350:"Mornin', kids. Nice day for a treestar!"]]
An older resident of the Great Valley who’s a common recurring background character in the series. He’s one of the few background characters who takes on more important roles in the story at times, and virtually the only one with a given name. He lives in the Great Valley with at least one young family member.

Appears in films three, five, seven, eleven, twelve, fourteen, and the TV episodes ''The Star Day Celebration'' and ''The Amazing Threehorn Girl''.

--> '''Voiced by:'''\\
Creator/RobPaulsen (''III'', ''XI'', ''XII'')\\
Creator/JeffBennett (''V'', ''The Amazing Threehorn Girl'')\\
Pete Sepenuk (''The Star Day Celebration'')
* {{Badass}}: He’s the only adult in the valley to protect the gang from sharpteeth in ''The Time of the Great Giving'' who isn’t one of their family members. In ''The Star Day Celebration'' he laughs right in Chomper’s face when he attempts to intimidate him.
* BigEater: He’s seems to be gluttonous, as he eats the day’s first treestar in film five without a second thought and refuses to share any grapes with the gang in ''The Star Day Celebration'' until he hears they’re for Ruby’s birthday.
* CoolOldGuy: When he’s not grumpy he can be a very nice man, as seen when he politely greets the gang at the beginning of film five.
* GivenNameReveal: Since his introduction he's been known simply as 'Mr. Clubtail', but the credits of the TV episode ''The Star Day Celebration'' reveal that his actual name is Kosh.
* JerkWithAHeartOfGold: He’s generally a gruff man with a soft side to him, although sometimes he isn’t gruff at all, like in ''The Mysterious Island''.

[[folder:Ali - ''Apatosaurus'']]
[[caption-width-right:300:"It takes all sorts to make our world."]]
A young female Apatosaurus from the land known as the Valley of the Mists. She is a Farwalker, along with the rest of her herd, and is constantly traveling.

Appears in film four and the TV episode ''The Brave Longneck Scheme''.

-->'''Voiced by:'''\\
Juliana Hansen (''IV'')\\
Creator/NikaFutterman (TV series)
* ByTheLightsOfTheirEyes: How she is introduced.
* DistaffCounterpart: Ali looks almost exactly like Littlefoot. Lampshaded by Petrie, who mistakes her for a second Littlefoot when he first sees her.
* DistressBall: Ali seems to uncharacteristically buy Rhett's bald-faced lies to the point that she'll side with him over her old friends Littlefoot and Cera. Not only that, it's shown that Ali doesn't even always like being around Rhett, but doesn't seem willing to stand up to him, which is a far cry from her bold personality from the fourth film.
* FantasticRacism: Not as bad as Mr. Threehorn gets, but she initially wasn't comfortable interacting with dinosaurs who weren't longnecks.
* GuestStarPartyMember: In ''Journey Through The Mist''
* PaleFemalesDarkMales: Ali is more pinkish than Littlefoot, who is more grayish.
* WalkingTheEarth: Her herd is migratory, after their homeland was ruined by constant rain and floods.

[[folder:Old One – ''Apatosaurus'']]
The leader of a group of wandering longnecks called the farwalkers, she brings word of the outside world to the Great Valley and identifies a sickness that has overtaken Littlefoot's grandfather.

Appears in film four and the TV episode ''The Brave Longneck Scheme''.

-->'''Voiced by:'''\\
Carol Bruce (''IV'')\\
Jessica Walter (TV series)
* ReasonableAuthorityFigure: She clearly has the best interest of her herd in mind, and is shown to be happy when finding that a sharptooth can get along with plant eaters.
* TookALevelInJerkass: In the TV series. See WouldHurtAChild.
* WalkingTheEarth
* WouldHurtAChild: In an episode of the TV series, she and her herd chase and eventually corner Chomper over a misunderstanding. Chomper, sounding close to tears, begs that they don't hurt him, and after a few moments of marveling over the fact that they're dealing with a talking sharptooth, she and her herd decide they ''still'' want to kill him. Given the fact that Chomper is both very outnumbered and very tiny compared to the longneck herd this seems ''extremely'' out of character for Old One.
** To be fair, Old One hesitates after hearing him talk, and only goes through with it after another herd member convinces her that it's for the good of the valley (and afterward, she still seems very reluctant).

[[folder:Ichy and Dil - ''Ichthyornis'' and ''Deinosuchus'']]
[[caption-width-right:300: Ichy-"I do all the REAL work around here. I'm the eyes!" Dil-"So? I'm the teeth!"]]
A squabbling male Ichthyornis and female Deinosuchus who partner together to hunt prey in the Valley of the Mists. They act as the main antagonists of the fourth film. Their whereabouts are unknown.

Appear in film four only.

-->'''Voiced by:'''\\
Creator/JeffBennett (Ichy)\\
Creator/TressMacNeille (Dil)
* BigBadDuumvirate: The main antagonists of the fourth film.
* BrainsAndBrawn: Ichy is the planner, Dil is the muscle. They're useless without each other, as Ichy is too small to accomplish much and Dil is nearly blind.
* ExitPursuedByABear: after 'parting ways' with Ichy, Dill is chased off screen by a very hungry looking plesiosaur.
* FeatheredFiend: Ichy is an evil bird.
* NeverSmileAtACrocodile: Dil, although she's a bit less competent than most.
* ShoutOut:
--> '''Dill''': [[{{Honeymooners}} "One of these-"]] *hits tree* [[{{Honeymooners}} "-days, Ichy-"]] *hits tree* [[{{Honeymooners}} "One of these-"]] *hits tree* "... Oh, forget it." *hits tree*
* TeethClenchedTeamwork: They are partners, not friends. They make it clear they're only together out of necessity.
* ThoseTwoBadGuys
* ToothyBird: Justified, as Ichy is an ''Ichthyornis'', which had teeth in real life.
* VillainSong: 'Who Needs You', all about how they can't stand each other, despite the fact that neither can survive without the other. It's done in a vaudeville style.

[[folder:Archie - ''Archelon'']]
An elderly resident of Ali's flooded homeland, the Land of Mists. He helps Littlefoot when the little Longneck gets isolated from his friends due to a cave-in.

Appears only in film four.

-->'''Voiced by:'''\\
Charles Durning
* CoolOldGuy
* GuestStarPartyMember: Unlike Ali, Archie only joins the group until they leave the cave system that leads up to the Land of Mists.
* GutturalGrowler: His first scene has him growling at an isolated Littlefoot in a way that makes him look like a threat, but he quickly mellows out once he sees that Littlefoot is just a lost kid and not a Sharptooth.
* TheHermit: He lives in a cave, and so doesn't usually see too many guests.
* SomewhereAPaleontologistIsCrying: Archelons were a sea dwelling species, and probably never inhabited far-inland caves even if those caves had water in them.

[[folder:Tickles - Mammal]]
The first Mammal to have any significance in a series about Dinosaurs, Tickles is a small rodent found by Spike in the Valley of the Mists in the gang's search for the night flowers. Taking a liking to the gang, he joins them on their travels around the valley until they decided to leave back for the great valley, at which point they parted company. He's probably still in the Land of Mists.

Appears only in film four.

-->'''Voiced by:'''\\
* ButNowIMustGo: Chooses not to return to the great valley with the dinosaurs, presumably because his main family was still in the valley of mists.
* CheerfulChild: Has a perpetual smile, and doesn't seem to be any more mature then the other dinosaurs. Still counts as VagueAge, though.
* KnownOnlyByTheirNickname: Since he can't talk normally, Ducky named him Tickles since he's the only one with fun hair on his body.
* OddFriendship: Even though they're only together for a little while, he and Spike seem to hit it off pretty well with each other.
* PintSizedPowerhouse: While normally seen rolling rocks only a little bigger than himself, when he can pick up Dil's tail and drag it around without much difficulty, that's more of a surprise given he's smaller than ducky.
* TheUnintelligible: Speaks only in squeaks, though the others seem to understand him fine.
* WhatHappenedToTheMouse: Literally, since he's a prehistoric mouse. He hasn't returned in any of the sequels or the TV series, despite the return of so many other characters.

[[folder:Elsie - ''Elasmosaurus'']]
An inexplicably British plesiosaur that accidentally frightens Chomper and Littlefoot. She gladly helps our dinosaurian heroes relocate their parents.

Appears only in film five.

-->'''Voiced by:'''\\
Christina Pickles
* ArtisticLicensePaleontology: Her portrayal has.... several problems, The least of which being a shark fin being on her head for ''no reason''. In this movie she is essentially just a sauropod with flippers. Plesiosaurs were only very distantly related to dinosaurs at all, much less longnecks. She's also improbably huge.
* TheCameo: She may or may not be one of the Elasmosaurs that swim by in the beginning of the ninth film.
* HorseOfADifferentColor: Her main contribution to the film is giving Littlefoot & Co back to the mainland
* NiceGirl
* StockNessMonster: Her neck is in the same pose as the classic picture
* VegetarianCarnivore: Plesiosaurs were carnivorous. We never see Elsie eat, but she has noticeably flat teeth, and appears to be just an aquatic version of Littlefoot's grandparents.
** Although an aquatic animal could just as well use flat teeth to crush the shells of shellfish. Granted, this is far from accurate too.

[[folder:Plated Sharptooth - ''Giganotosaurus'']]
An unnamed, vicious Giganotosaurus living on the Mysterious Island. He acts as the main antagonist of the fifth film. He's drowned---we assume---after being pushed off a cliff into the ocean, similar to a certain other Sharptooth we've seen before.

Appears only in film five.
* {{Badass}}
* BigBad: Of the last act of ''Mysterious Island''.
* DarkerAndEdgier: Sharpteeth, particularly unnamed ones, are generally portrayed as incompetent villains, but the Plated Sharptooth harkens more to the vicious, relentless threat of the original Sharptooth.
** He holds the distinction of being the only character other than the first Sharptooth to ever draw visible blood on screen.[[ He slashes Chomper's father's nose with his claws]], and then slashes his mother's leg with his toes. And no, it didn't get edited out this time.
* {{Determinator}}: Most sharpteeth in the series will run in fear the moment that adult ''flateeth'' make the scene. The Plated Sharptooth was perfectly willing to stand and fight two other adult sharpteeth ''at the same time''.
** He does have one LighterAndSofter moment where he accidentally bites his own tail, tearing up as he does so.
* DisneyVillainDeath
* ImplacableMan: While not quite as unstoppable as the sharptooth of the first film, he's displayed unusual persistance by jumping over chasms and fighting off other sharpteeth in an attempt to get at the heroes.
* KnightOfCerebus: Calls back more to the original Sharptooth in terms of sheer viciousness. Aside from one aforementioned comedy moment, the Plated Sharptooth was ''much'' more serious than others of its kin.
* NoNameGiven: The movie never gives him a name, but the credits refer to him as 'The Plated Sharptooth'.
* RedEyesTakeWarning: His eyes are drawn in an unusually animalistic manner, with less expression, more prominently slitted pupils, and dark marks under his eyes. These mark him out as an unusually dangerous sharptooth.
* TakingYouWithMe: Similar to how the original sharptooth nearly dragged Petrie to the water with him when he falls, the Plated Sharptooth knocks Chomper off a cliff and into the ocean along with him.

[[folder:Doc - ''Diplodocus'']]
[[caption-width-right:300:"Have it your way, kid."]]

A loner Diplodocus who fights away sharpteeth, and Littlefoot's idol. Littlefoot believes he is the legendary 'Lone Dinosaur' of myth. He's a wanderer, and constantly travels from place to place.

Appears in film six and the TV episode ''The Lone Dinosaur Returns''.

-->'''Voiced by:'''\\
Kris Kristofferson (''VI'')\\
Creator/JeffBennett (TV series)
* {{Badass}}
* ClintSquint
* TheDrifter
* {{Expy}}: The dinosaur version of Clint Eastwood.
* FantasticRacism: When he shows up in the series, he refuses to accept Chomper might be a good guy due to him being a Sharptooth. However, he ultimately learns the error of his ways when the little guy helps save his 'lady friend'.
* GoodScarsEvilScars: A thin, jagged one over the right side of his face.
* JerkWithAHeartOfGold: In the TV series, at least. In his first appearance, he's more of a silent, enigmatic wanderer whose moralities-- outside of fighting sharpteeth-- are unknown.
* TheJinx: The events of the sixth film cause the Great Valley residents to pin the blame on his arrival to the valley as a harbinger of bad luck. While he doesn't particularly seem to care about the negative reputation he has, it is a stigma that's stuck with him all the way up to his reappearance in the TV series.
* RedBaron: The Lone Dinosaur
* TheStoic: It's hard to tell what he feels half the time. Even in a clear moment of displeasure, like when he finds out about Littlefoot's friendship with Chomper, he seems self-restrained in his emotions.
* TagAlongKid: Doc seems to see Littlefoot as this. While he doesn't discourage Littlefoot from trying to imitate him and does seem to genuinely like him, he usually has other things on his mind than trying to impress a local longneck boy.
* WartsAndAll: Doc fits this trope from the time he condemns Littlefoot's friendship with Chomper until the time he repents for it.
* WhipItGood: What he uses his tail for.

[[folder:Dana and Dinah - ''Triceratops'']]
Two rambunctious threehorn hatchlings with a knack for getting in trouble. The two are Cera's niece and nephew, despite the fact that none of her siblings appear in the sequels.

Appear in film six only.

-->'''Voiced by:'''\\
Creator/NancyCartwright (Dana)\\
Sandy Fox (Dinah)
* AnnoyingYoungerSibling: For Cera--although she's technically their aunt and not their older sister.
* BabyTalk: They talk in an unintelligible babble. Humorously [[LampshadeHanging lampshaded]] by Cera as she tearfully remembers their 'first words'.
* CantLiveWithThemCantLiveWithoutThem: Despite how annoyed Cera often is with them, she's legitimately distraught when she thinks something bad has happened to them.
* ChuckCunninghamSyndrome: They disappear after ''Saurus Rock''. Presumably, they went back to live with their parents.
* CousinOliver: Seemingly introduced as this. Fortunately, they quickly disapear after their first appearence.
* FearlessInfant: They are ''totally oblivious'' to any kind of danger!
* ParentalAbandonment: Their parents are nowhere to be seen. Interestingly, despite one of them likely being a sibling of Cera's, they don't resemble Cera at all.

[[folder:Pterano - ''Pteranodon'']]
[[caption-width-right:300:"Petrie, I'm heartbroken. Didn't you recognise your dear old uncle?" ]]
An ambitious, cunning Pterosaur who takes an interest in the story of the Stone of Cold Fire. He's Petrie's maternal uncle, and an antagonist for much of the seventh film. He's been banished from the Great Valley for several years as punishment for kidnapping Ducky, and his current whereabouts are unknown.

Appears in film seven only, though is mentioned a few times in the TV series.

-->'''Voiced by:'''\\
Michael York
* AffablyEvil: He's a pretty nice guy, despite his nastier qualities.
* AntiVillain: Not really evil per se, but certainly selfish and very reckless. While he has put people in danger before, he never means to do so and wishes no harm on anyone.
* TheAtoner: Eventually.
* BigBad: Of ''Stone of Cold Fire'', [[HeelFaceTurn though he doesn't stay that way]].
* CoolUncle: Petrie thinks he is.
* DangerouslyGenreSavvy:
-->'''Rinkus''': Why not simply ask the longneck to tell us where [the stone of cold fire] is! (''makes a slashing motion over his neck'') Or else (''EvilLaugh before being smacked in the face by Pterano'')
-->'''Pterano''': Mr. Rinkus, if you threaten the young ones [[PapaWolf it will put the]] [[MamaBear elders on alert]]. They will [[ProperlyParanoid watch our every move]] and our cause will be lost! ''Now is THAT what you want!?''
-->'''Rinkus''': N-n-n-n-no! Of course not!
* DirtyCoward: Accused of being one, after his disastrous leadership.
* EvenEvilHasLovedOnes: He has a sister and a couple nieces and nephews, one who ''adores'' him. However, his sister is less than friendly when he shows up.
* EvenEvilHasStandards: He may be arrogant and somewhat nefarious, but he draws the line at [[WouldNotHurtAChild harming children]]. When he first mentions it, it sounds like PragmaticVillainy, but later he expresses genuine sorrow when Ducky appears to have fallen to her death and genuine horror when Sierra declares that the minute they become leaders he's going to throw the kids to the sharpteeth. Lampshaded by his sister, who states that while he's done many bad things, she knows he would never let Rinkus and Sierra harm Ducky.
* EvilBrit
* EvilUncle : But he has a HeelFaceTurn.
* TheExile: At the end of ''Stone of Cold Fire'', he's exiled from the Great Valley for several years thanks to his past actions and kidnapping Ducky. However, since he helped save the children, his sentence was lessened significantly.
* ItsAllAboutMe: His theme song, "Very Important Creature" highlights this. He's motivated by a ''big'' superiority complex.
* JerkWithAHeartOfGold
* KnightOfCerebus: Thanks to his having gotten a large number of the herd killed, he brings a much more personal threat to the adults of the Great Valley than any villain before him.
* MyGodWhatHaveIDone: He has this response ''a lot''. Most notable is the one listed directly below.
* MyGreatestFailure: Pterano had once unintentionally led a group of followers into a fast biter (raptor), ambush, where everyone but himself was killed. He seems very haunted by this event.
* NeverMyFault: His FatalFlaw.
* {{Pride}}: He has a very overinflated opinion of his leadership abilities.
* PteroSoarer: Unlike his nephew, he was unlucky to be a sequel character, and hence whatever accuracy the original movie's pterosaurs had was not carried on.
* VillainSong: 'Very Important Creature', another contender for the best villain song of the series, mainly because rather than being about how nasty and vicious he is, this song is simply about how brave and strong he thinks he is, and how egotistical everyone else thinks he is.
* WellIntentionedExtremist: He legitimately believes himself to be a good leader and thinks that everyone would be better off with him as such.

[[folder:Sierra and Rinkus - ''Cearadactylus'' and ''Rhamphorhynchus'']]
[[caption-width-right:283:Rinkus on the left, Sierra on the right]]Two conniving pterosaurs that associate themselves with Petrie's uncle Pterano. However, they seem to have plans all their own...

Appear in film seven only.

-->'''Voiced by:'''\\
Creator/JimCummings (Sierra)\\
Creator/RobPaulsen (Rinkus)
* BrainsAndBrawn: [[ObfuscatingStupidity Rinkus]] is the brains and [[MurderIsTheBestSolution Sierra]] is the brawn.
* DangerouslyGenreSavvy: Rinkus points out to Sierra that it would be inconvenient to ''kill'' Pterano and instead opts to just tolerate him long enough to get power from the Stone of Cold Fire, then [[YouHaveOutlivedYourUsefulness dispose of him when he's no longer needed]].
-->'''Rinkus''': Just be patient; [[WhamLine let HIM lead US to the stone...]]
* DirtyCoward: Rinkus. Or so it seems...
* {{Foreshadowing}}: Rinkus' darker side is hinted at several times in the movie, like not so subtley implying that he wanted to threaten Littlefoot with violence or even ''death'' if he doesn't tell them the location of the stone.
* MurderIsTheBestSolution: Sierra suggests feeding the main characters to sharpteeth.
** Rinkus says that should kill Littlefoot if he doesn't give them information about the stone.
* NotSoHarmless: Rinkus, who proves himself to be a pretty nasty schemer on several occasions.
* ObfuscatingStupidity[=/=]BewareTheSillyOnes: Underneath his supposed stupidity, Rinkus is easily the smarter and more treacherous of the two.
* PragmaticVillainy: Rinkus, as opposed to the eccentric Pterano and [[ForTheEvulz just malevolent]] Sierra. His boss pisses him off and mistreats him? Goes perfectly in alignment with his will until muscle back up (in that case, his beligerent coleague) is conveniently availiable.
* PteroSoarer: Same as above.
* SeldomSeenSpecies: Sierra is a ''Cearadactylus'', whose only other appearance in popular media was the novel version of ''Literature/JurassicPark''.
* ShoutOut: Rinkus is constantly twisting his tail in his hands, [[{{Film/TheWizardOfOz}} kind of like a certain other famous cowardly character.]]
* {{Smug Snake}}s: Both of them, but Rinkus moreso than Sierra.
* TheSociopath: They're both this, in different flavors; Sierra's the violent, hateful sociopath with [[LackOfEmpathy no empathy]], while Rinkus is the lying, deceitful sociopath who can convincingly fake emotions and manipulate people.
* TheStarscream
* ThoseTwoBadGuys

[[folder:Rainbow Faces - ''Gallimimus'']]
A mysterious male and female Gallimimus who talk in riddles and seem to posses uncommonly advanced knowledge about the world. Their current whereabouts (if they're even still on Earth) are unknown.

Appear in film seven only.

-->'''Voiced by:'''\\
Charles Kimbrough (male)\\
Patti Deutsch (female)
* AlienAmongUs: Never directly addressed, but very, VERY heavily implied, both by their more-than-saurian knowledge of how the world works, and by the shimmering pillar of light that marks their departure.
* CloudCuckooLander: The Great Valley seems to see them as weirdos who say bizarre things, although Mr. Clubtail claims they seem 'harmless enough'.
* DeadpanSnarker: The female Rainbow Face.
* LikeAnOldMarriedCouple: How they generally act. [[ShipTease And they might be one]], but there's no confirmation.
* ThePhilosopher: They both bring up points of view that seem [[IncrediblyLamePun alien]] to the members of the Great Valley, such as the idea that there's nothing that makes the Mysterious Beyond 'mysterious' other than a lack of will to explore it.
* SayingTooMuch: A running gag with the male Rainbow Face, something his companion likes to point out.
-->'''Female Rainbow Face:''' Life is full of little mysteries, isn't it? (''turns to the male one'') And ''you'' are giving away too many of them!
* TheSpock: Both are incredibly logical and scientific about the world, and utterly unconcerned with how weird the Valley residents think they are.

[[folder:Mr. Thicknose - ''Pachyrhinosaurus'']]
An old teacher who's responsible for giving young dinosaurs in the Great Valley their primary education. He lives alone in the Great Valley; it is unknown if he continues to teach or not.

Appears in film eight and several TV episodes.

-->'''Voiced by:'''\\
Robert Guillame (''VIII'')\\
Dorian Harewood (TV series)
* AscendedExtra: Appears in only one film, becomes a regular character in the TV series.
* BreakTheHaughty: Starts out the film as being very proud of his knowledge and position in the valley, and speaks to Grandpa scathingly about Littlefoot's stream of questions. When he's proven incredibly wrong about the potential of snowfall in the Great Valley, he's shunned by the herd and is forced to accompany the children on their journey to find Ducky and Spike.
* CoolOldGuy: Eventually.
* IJustWantToBeSpecial: When he was young, Mr. Thicknose was incredibly shy and had difficulty making friends. He often spent his time listening to the things that the farwalkers had to say as they passed through the Great Valley, and it was because of this that he amassed so much second-hand knowledge. His position as a keeper of wisdom in the valley is so precious to him that when he loses it he feels as though he has little else to live for.
* KnowNothingKnowItAll: Originally respected as the smartest resident of the Great Valley, having "Been everywhere and seen everything", it is then revealed that he gets most of his knowledge from second-hand sources. Though he does put the information he's gained about landmarks to good use later on.
* SpockSpeak: PlayedForLaughs as he explains the various ways of getting leaves to fall from a tree, like the 'Cranio-Impactus Method' that involves hitting the tree with your head.
* SternTeacher: He dislikes all of the prying questions Littlefoot keeps asking him, to the point that he tells his grandparents that he's a trouble-making influence on the rest of his class. Later, it's revealed he actually thought Littlefoot asked very good questions, but he had been afraid that it might have accidentally revealed that he really ''hadn't'' been everywhere and seen everything.
* YoungerAndHipper: The TV show has Mr. Thicknose with a significantly deeper, younger sounding voice, along with a more energetic personality. He also seems to have become far more open in his beliefs: while he refused to accept that snow could ever fall in the great valley in film eight, he seems perfectly willing to believe that there is such thing as an invisible dinosaur in the TV series.

[[folder:Tippy - ''Stegosaurus'']]
A young Spiketail who quickly becomes friends with Spike when his herd travels to the valley in search of food and shelter.

Appears in film eight and the TV episode ''The Forbidden Friendship''.

-->'''Voiced by:'''\\
Jeremy Suarez (''VIII'')\\
Creator/CreeSummer (TV series)
* LivingProp
* ThirdPersonPerson: In the TV series.
* SuddenlyVoiced: He was largely silent in his debut appearance due to his young age, but by the time of the TV series he's learned to speak in broken English.

[[folder:Mo - ''Ophthalmosaurus'']]
An energetic Opthalmosaurus who befriends Littlefoot after he becomes trapped in the floodwaters of the Great Valley. He lives in the Big Water with the rest of his family.

Appears in film nine, makes cameos in films ten and twelve, and appears in the TV episode ''The Missing Fastwater Adventure''.

-->'''Voiced by:'''\\
* BloodBrothers: Sort of. In the ninth film, he and Littlefoot become 'mud brothers', a PG equivalent.
* DisneyDeath
* GuestStarPartyMember
* HeroicSacrifice: Narrowly escapes a swimming sharptooth when it changes direction while he hides in a hollow log.
* {{Keet}}: The little guy has tons of energy.
* StarfishAlien: If the Swimming Sharptooth is an EldritchAbomination from the kids' POV, then Mo is definitely one of these to them; a lot of attention is drawn to the fact that he's very different from them, although their differences are not treated as bad and it's made very clear that the only real way they're different is in physical appearance.
* ThirdPersonPerson

[[folder:Sharptooth Swimmer - ''Liopleurodon'']]
A voracious carnivore from the sea, this swimming sharptooth is a long way from home to be sure, but he won't let that get in the way of a good meal.

Appears in film nine only.
* BigBad: Of ''Journey to Big Water''.
* EvilCounterpart: To Mo. Both are non-dinosaurian reptiles from the ocean that are forcible taken from their homes and left in a newly made lake in the Great Valley. Unlike Mo, this one is a vicious carnivore.
* EldritchAbomination: To the kids. They've never seen anything like it, and Littlefoot even calls it a monster.
* KrakenAndLeviathan: Of the leviathan type.
* NeverSmileAtACrocodile: Not quite, but it's certainly meant to bring this trope to mind
* NonMaliciousMonster: The only reason it ever crosses paths with the heroes is because it's trapped in the Great Valley with Mo. It is a carnivore, so it does try to eat them, but its clear than it is just trying to get home, and stops antagonizing the kids after it smells the ocean.
* NonStandardCharacterDesign: It's probably the most realistically designed creature in the series. Even the more vicious portrayals of sharpteeth in the series has them looking stylized and slightly cartoony, whereas the Sharptooth Swimmer looks like it was plucked straight out of a nature documentary. It also has no pupils or facial expressions (most of the time)
* SeaMonster: Well, it ''is'' a Liopleurodon, so what did you expect? It to be eating cheese?

[[folder:Bron - ''Apatosaurus'']]
[[caption-width-right:300:"Your mother and I knew we were going to have a hatchling."]]
A herd leader that partakes in the Great Longneck migration. He's Littlefoot's long lost father, and the adopted father of Shorty. Due to the responsibilities of being a herd leader, he does not live in the Great Valley with his biological son, but now steers his entire herd to the valley once every year just to see him.

Appears in films ten, fourteen, and the TV episode ''The Big Longneck Test''.

-->'''Voiced by:'''\\
Creator/KieferSutherland (''X'')\\
Creator/CamClarke (TV series)\\
Scott Whyte (''XIV'')
* {{Badass}}: Being the leader of his own herd doesn't mean he's gotten soft in how to fend off Sharpteeth. Must run in the family.
* {{Callback}}: Bron’s explanation of where he’s been for all of Littlefoot’s life provides more callbacks to the original film than at any other point in the sequels (the only other ones being a mention of the earthquake in the seventh film, mentions of Littfoot's mother dying in the fifth and fourteenth films, and some throwaway callbacks in the second, thirteenth, and fourteenth films). Among hem is the only ''ever'' direct mention of the original Sharptooth to date.
* DisappearedDad: He left to find a suitable place to live before Littlefoot's birth and by the time he returned, the Great Earthshake had occurred.
* GenreSavvy: Bron is, to date, the ''only'' adult in the film series that told Littlefoot to go help fight a Sharptooth, instead of to run away. Apparently, when Littlefoot described his childhood of [[CurbStompBattle beating every Sharptooth he encountered]], Bron was actually listening.
* GoodParents: When he does reunite with Littlefoot and makes amends with him, he is shown to be a very loving father to both him and Shorty.
* IThoughtYouWereDead: Bron's excuse for having never met his son until now.
* LightningBruiser: The only Longneck in the series to use a ''running start'' to attack a Sharptooth. Also the only one to not be defenseless when knocked off his feet--he just kicks the offending Sharptooth in the face and sends it rolling down a mountain.
* LikeFatherLikeSon: Looks remarkably like his son, such as having the same coloration. He's also a herd leader, much like Littlefoot who often acts like a herd leader to his friends during adventures.
* NamedLikeMyName: When he was younger, people used to give him the nickname 'little foot'. His wife knew this about him, and decided to name their son after this.
* RealityEnsues: Sorry, Bron, your son is not going to instantly accept you when he finds out you're his father. Indeed, Bron ends up having to explain, in detail, where he was for all that time and why he was never there for him to get Littlefoot to forgive him.
* RememberTheNewGuy: He somehow already knows who Chomper and Ruby are in the TV series, despite it never being shown how they were introduced, or how Bron reacted when he found out that one of his son’s best friends is the same kind of creature that killed his wife.
* NoOneGetsLeftBehind: Bron would risk his life for anyone in his herd-- even for weirdos like Wild Arms.
* OneHitKO: When he kicked a Sharptooth in the face in X, it went rolling down the mountain and didn't get up for about a minute. Which is a very long time, [[{{MadeOfIron}} where Sharpteeth are concerned.]]
* ParentalSubstitute: To Shorty.

[[folder:Shorty - ''Brachiosaurus'']]
An orphaned, troubled young Brachiosaurus who travels with Bron's herd. Bron later officially adopts him, making him Littlefoot's adopted brother. He lives a nomadic life with his adopted father.

Appears in film ten and the TV episode ''The Big Longneck Test''.

-->'''Voiced by:'''\\
Brandon Michael de Paul (''X'')\\
Creator/ElizabethDaily (TV series)
* BigBrotherBully: When he first meets Littlefoot, his future step-brother, he picks on him. This tendency abates once Bron agrees to adopt Shorty.
* BratsWithSlingshots: He uses his tail to smack pebbles at things with great precision.
* GreenEyedMonster: Shorty is blisteringly jealous of Littlefoot hogging all of Bron's attention, to the point that he tries to start physical confrontations with him.
* HappilyAdopted: By Bron.
* JerkWithAHeartOfGold
* LeaderWannabe: While Littlefoot is off taking the big longneck test, Shorty takes his friends on an adventure in his stead. It quickly becomes apparent that he has none of his step-brother's leadership talents.
* NoPlaceForMeThere: While Bron is understandably ecstatic to have found the son he’d thought he’d lost long ago, Shorty sees it as Bron finding his ‘family’ and therefore has no need for him anymore, just like how his old companions left him. Shorty prepares to slip away when Bron isn’t noticing, but Littlefoot stops him and tells him that Bron still cares for him, even bringing up the possibility of the two being brothers now.
* NotSoDifferent: He and Littlefoot were in identical situations following the earthshake of the first film: both are separated from their family and must team up with other youngsters to survive. However, as he and his companions start following Bron, one by one they're all reunited with their family members-- except for Shorty.
* StreetUrchin: Not unlike Littlefoot himself, Shorty was left alone to fend for himself in the world after the Great Earthshake of the first film. However, unlike Littlefoot, Shorty never reunited with anything he could call family.
* WhatHappenedToTheMouse: Is neither seen nor mentioned in ''Journey of the Brave'', despite the plot revolving entirely around finding Bron and the arrival of his herd.

[[folder:The Tinysauruses – ''Mussaurus'']]
A group of friendly but oft-persecuted tiny dinosaurs that are searching for a place to live. After a lengthy fiasco involving a fruit tree, they eventually elected to make the Great Valley their new home.

They appear in film eleven and make a cameo appearance in film twelve.

-->'''Voiced by:'''\\
Creator/MichaelClarkeDuncan (Big Daddy)\\
Creator/CreeSummer (Lizzie)\\
Leigh Kelly (Skitter)\\
Ashley Rose (Dusty)\\
Creator/NikaFutterman (Rocky)
* BadassBaritone: The leader of the tinysauruses, Big Daddy, is voiced by Michael Clarke Duncan.
* BeneathTheEarth: They initially hide in the caves underneath the Great Valley to avoid persecution from larger dinosaurs. According to Ducky in ''Stranger from the Mysterious Above'' they still live in the valley caves by the time of the TV series, despite not having any reason to hide anymore.
* CallARabbitASmeerp: Despite it being in the title of the eleventh movie and the term they’re most widely know by, they’re never actually called ‘Tinysauruses’ in the film, and instead called ‘little longnecks’. However, in an episode of the TV series Ducky does refer to them as such.
* LittlePeople: They're the smallest dinosaurs in the series, with the adults being even smaller than Ducky. Justified, as juvenile Mussaurus were indeed incredibly tiny (hence the name 'Mouse Lizard'), although in real life the adults got much bigger than how they're depicted here.
* TheScapegoat: Littlefoot blames them for eating all the tree sweets off a special tree, which is half-true but ignoring how they couldn’t have done so without him accidentally knocking them all down. Party because of his own initial fear of them, Littlefoot doesn’t realize how much trouble this causes for the tinysauruses until he gets to know some of them personally. As it turns out, getting unfairly blamed for misfortunes is something that happens to them wherever they go.
* WalkingTheEarth: Everywhere they go they’re treated like vermin, and travel from place to place to try to find somewhere they can call home. At first it seems as though the Great Valley is just as prejudiced towards them as anywhere else, but by the end of the film they elect to settle and become valley residents.

[[folder:Tria - ''Triceratops'']]
A pink triceratops who had courted Cera's father when they were young. She marries Topsy, becoming Cera's stepmother, and later gives birth to Cera's half-sister, Tricia. She lives in the Great Valley with her husband, daughter and stepdaughter.

Appears in films eleven, twelve, and thirteen, as well as multiple TV episodes.

-->'''Voiced by:'''\\
Camryn Manheim (''XI-XII'')\\
Jessica Gee (''XIII'', TV series)
* BroodingBoyGentleGirl: The gentle girl to Topsy's brooding boy.
* GoodParents: She's a good parent to her biological daughter and a good stepparent to her stepdaughter.
* MinnesotaNice: In the TV series, at least. There are hints of the accent in her inflections, and she certainly has the polite behavior.
* MoralityPet: She seems to be the only adult in the series capable of soothing Cera's hot-headed father.
* NewOldFlame: To Topsy.
* WickedStepmother: Greatly averted. When she first gets together with Topsy, she takes great pains to try to establish a healthy, loving relationship with Cera, who's unwilling to facilitate it at first. Tria's patience eventually runs out and the two clash briefly, but Cera decides to give her a chance. After that, she loves and cares for Cera like she's her own daughter.

[[folder:Guido - ''Microraptor'']]
A nervous glider who becomes friends with Petrie. He suffers from amnesia for much of the twelfth film and believes he's the only one of his kind. By the end of the film, he elects to live in the Great Valley.

Appears in film twelve and the TV episode ''The Hermit of Black Rock''.

-->'''Voiced by:'''\\
* ButtMonkey
* InstantExpert: Has no problem flying, as long as he is asleep. Later learns to do it for himself.
* {{Joisey}}: He possesses a mild New Jersey accent.
* LastOfHisKind: Allegedly, likely stemming from...
* LaserGuidedAmnesia: He wakes up in the Great Valley and has no idea where he is, what he is, where he came from, how he got here...
* NoodleIncident: Chomper mentions that the two were first introduced when Guido baby sat for Tricia, which is why he's only nervous when he sees him instead of outright terrified.
* RememberedICouldFly: See above, and only after everyone tells him he can.
* PluckyComicRelief: Like Petrie, he's a panic-prone flier whose fears are often PlayedForLaughs.
* ToothyBird: Inverted; ''Microraptors'' had toothy snouts in real life, but Guido has a toothless, parrot-like beak.
* VegetarianCarnivore: Subverted. He doesn't know what kind of animal he is, so it takes a while for him to figure out his real diet. He starts out trying to eat leaves, but he's grossed out by them. He instead eats a bug that he found on one of those leaves...and he instantly loves it. His friends are kind of squicked out by this.

[[folder:Tricia - ''Triceratops'']]
A giggly young threehorn hatching. She's the youngest daughter of Topsy and Tria, as well as Cera's half sister. She was born and lives in the Great Valley with the rest of her family.

Appears in films twelve, as well as multiple TV episodes.

-->'''Voiced by:'''\\
Nika Futterman (''XII'')\\
Meghan Strange (TV series)
* BabyTalk: She's too young to talk, although she's already said her first word: 'Cera'.
* NamedLikeMyName: Her name is very similar to her mother's.
* SiblingRivalry: Cera was none to keen of Tricia when she was first hatched, as she hogged all of her father's and Tria's attention. By the end of film twelve, however, Cera grew to love her new half-sister, and future installments almost always show them on good terms with each other.

[[folder:Loofa and Doofa - ''Beipiaosaurus'']]
Appear only in film thirteen.

-->'''Voiced by:'''\\
Cuba Gooding Jr. (Loofa)\\
Sandra Oh (Doofa)
* CallARabbitASmeerp: They're referred to as 'Yellow Bellies'
* CloudCuckooLander
* DoesThisRemindYouOfAnything: Doofa has a habit of calling Cera beautiful. That combined with picking her up the first time they meet, well...
* EscortMission: They seem so naive, incompetent, and clumsy that Littlefoot actually feared for their safety when they mention they're traveling alone, to the point of having nightmares about them meeting some horrible fate. He decides it would be best if he and his friends tag along to keep an eye on them. This can also count as AdultsAreUseless, or perhaps more aptly, Adults Are Helpless.

[[folder:Wild Arms - ''Nothronychus'']]
A loud, highly eccentric member of Bron's herd who's well known for getting himself into trouble and flailing his arms about. He travels with the rest of Bron's herd.

Appears in film fourteen.

-->'''Voiced by:'''\\
Damon Wayans Jr.
* {{Adorkable}}
* ButtMonkey: He's rarely shown in a dignified position.
* CloudCuckooLander: He didn't even realize the origin of his name until he seemingly realized it in the middle of his conversation with Mr. Threehorn.
* {{Fainting}}: He's terrified of Chomper the moment he sees him, and as soon as the boy goes in to hold his hand to guide where he's going, he faints on the spot.
* GuestStarPartyMember: Not for the gang, but for Mr. Threehorn and Grandpa Longneck as they trail Littlefoot.
* HateAtFirstSight: A one sided version. Topsy dislikes him the moment he sets eyes on him. Wild Arms is intimidated by Mr. Threehorn, but does try to get into his good graces as the film goes on.
* TheKlutz: He has, to put it mildly, a striking lack of grace, and often flails his arms around wildly when he's running about. [[spoiler: It's this clumsiness that ends up putting Bron in danger as he stays behind to rescue him.]]
* LovableCoward: He constantly suggests going back to the Great Valley instead of going to save Bron, and is so terrified of Chomper-- a kid who's less than half his size-- that he faints when he so much as touches him.
* MilesGloriosus: He'll often retell stories in a way that paints him in a better light than how it actually happened, although absolutely no one is fooled by this.
* OnlyKnownByTheirNickname: 'Wild Arms' is a name that everyone has assigned him because of his wild, colorful arms, and as such it isn't his actual name. In fact, he didn't even realize what it was referring to until recently.
* PinchMe: At least until he sees that the nearest person is an unamused Mr. Threehorn glaring at him--then he just pinches himself.
* PluckyComicRelief
* SmallAnnoyingCreature: It's clear that the other adults find him very hard to put up with because of his loud, talkative, cowardly nature, which is especially true for Mr. Threehorn who's almost always seen glaring at him.

[[folder:Etta - ''Pteranodon'']]
[[caption-width-right:299:"When things get darkest, that's when you look for the light."]]
A flier who's a member of Bron's herd, and is separated from everyone else by the eruption of fire mountain. She travels with the rest of Bron's herd.

-->'''Voiced by:'''\\
* AnalogyBackfire: Almost every uplifting metaphor that comes out of her mouth is followed by a down-beat aside that kills any hopeful effect she was going for.
* CallARabbitASmeerp: She's specifically as 'Big Beak' subtype of flyer.
* CloudCuckooLander
* CoolOldLady: She's significantly older than the main cast, but still optimistic and hopeful. When Littlefoot is beating himself up over getting his friends into a situation too big for them to handle, she tries her best to cheer him up.
%%* CrossesTheLineTwice: She makes a surprisingly dark joke when she mentions a cousin of hers who was so brave, she would stick her head in a Sharptooth's mouth for a friend. And that's why she's not around anymore...
* GuestStarPartyMember
* InkSuitActor: She has Reba [=McEntire's=] green eyes and long eyelashes, as well as a red tinge on her crest that's the same color as Reba's hair.
* PteroSoarer
* RamblingOldManMonologue: She has plenty of stories about her family that she loves to bring up, and most of them end morbidly.
* SouthernBelle: Etta retains her voice actress's pronounced southern drawl in the film.
* SuspiciouslySimilarSubstitute: For Archie from film four, another old cave dweller who helped Littlefoot when he was separated from his friends because of a cave-in, and Swooper from the TV series, who’s also a cave dwelling old flier with a southern accent and [[CloudCuckooLander a few screws loose.]]
* TeamMom: She's very affectionate towards Littlefoot in particular, which might be due to the fact that he's her herd leader's son.


!!The television series

[[folder:Ruby - ''Oviraptor'']]
[[caption-width-right:300:"Hello, my friends, my friends hello!"]]
A whimsical female oviraptor who acts as Chomper's guardian in the Great Valley while he lives away from his parents. She and Chomper live in the Secret Caverns, a system of caves in the Great Valley. She's a main character in the TV show.

Appears or is mentioned in every TV episode, as well as film fourteen.

-->'''Voiced by:'''\\
Meghan Strange
* BreakoutCharacter: She is the first and only character that was introduced outside of the films to later appear in one, having first appeared in the TV series and later making her film debut in ''Journey of the Brave''.
* CloudCuckooLander:
--> '''Ruby''': "I'm right here... Of course, I'm ''always'' "here", and "here" is where ever I am."
* CoolBigSis: Ruby is the oldest of the kids and goes between this and TeamMom, especially for Chomper.
* DeadpanSnarker: Not nearly as much as Cera, but she has her moments when she gets annoyed.
* DepartmentOfRedundancyDepartment: Often. See VerbalTic.
* NiceGirl: She's always looking out for the group, and she always comforts Chomper when he's upset.
* OnlySaneWoman: Much like Littlefoot.
* OutOfFocus: In ''Journey of the Brave''. Gets left out of the rescue mission, yet surprisingly this is not treated as an issue.
* ParentalSubstitute: She acts as a guardian to Chomper while they live in the valley.
* PromotionToParent: Since neither Ruby and Chomper were accompanied by their families to the Great Valley Ruby has become a sisterly version of this to Chomper.
* TheReliableOne: Chomper's parents leave her in charge of their kid for a reason.
* RememberTheNewGuy: She and Chomper are already with the main cast on the first episode without any mention of her past. Even though she gets more details explained later it's quite {{egregious}}.
* ShownTheirWork: Her species are portrayed with feathers and as omnivores instead of egg-eaters.
* [[SixthRanger Seventh Ranger]]
* TomboyAndGirlyGirl: GirlyGirl to Cera's {{Tomboy}}. (One of two)
* VegetarianCarnivore: Averted. While she likes eating plants (her favorite food is grapes, in fact), she's also seen eating a shellfish at one point, which would classify her as an omnivore. [[ShownTheirWork You know, just like real Oviraptors were]].
* VerbalTic: Tends to say things twice, but the second time switching the structure of the statement around.
* WiseBeyondTheirYears: Ruby, despite being only a little older than the main characters, has much more wisdom than the others because unlike them, she spent most of her life in the mysterious beyond associating with leaf eaters and sharpteeth alike.

[[folder:Red Claw - ''TyrannosaurusRex'']]
An uncommonly powerful Tyrannosaurus who's terrorizing the mysterious beyond and attempts to attack the gang on their adventures. It's because of him that Ruby and Chomper were forced to leave their families and seek refuge in the Great Valley.

-->'''Voiced by:'''\\
Pete Sepenuk
* BigBad: Of the TV Series.
* TheDreaded: He's so feared in the Mysterious Beyond that Chomper's parents-- two capable sharpteeth who were able to defeat the vicious Plated Sharptooth-- sent their only son to the Great Valley to be safe from him.
* {{Expy}}: Of the original Sharptooth. Just like the original sharptooth, Red Claw causes such widespread fear that even other sharpteeth try to keep away from him. Also telling is his one discolored eye, likely a reference to the original sharptooth getting stabbed in the eye with a thorn.
* GoodScarsEvilScars
* InformedAbility: He's said to be one of the biggest, baddest Sharptooth of all time, but he's constantly defeated by a group of children...though said children have a long record of beating Sharptooth. That said, he's never shown to be nearly as vicious as the original sharptooth.

[[folder:Screech and Thud - ''Utahraptor'']]
Two fast biters who work in tandem with Red Claw to capture prey.

-->'''Voiced by:'''\\
Pete Sepenuk (Screech)\\
Creator/RobPaulsen (Thud)
* EvilIsDumb
* {{Evil Minions}}
* MakesUsEven: Not long after Chomper helps free him from a pile of rocks, Thud finds him and the rest of the gang trapped inside a small cave near a canyon wall. Instead of alerting Screech and Red Claw, he leads them in the opposite direction of where the kids are hiding.
* RaptorAttack: Besides lacking feathers, they have two fingers instead of three.

[[folder:Rhett - ''Apatosaurus'']]
A compulsive liar who dazzles Ali with fake stories about his past bravery. He appears in the TV episode ''The Brave Longneck Scheme''.

-->'''Voiced by:'''\\
* BreakTheHaughty: Brags that sharpteeth fear him...until he has to deal with an actual one. And said actual sharptooth isn't even bigger than him.
* DirtyCoward: The exact instant he's faced with a real sharptooth, he turns tail and runs. What makes this different from the other characters is that this sharptooth was about a tenth his size.
* MilesGloriosus: He brags about outlandish feats of strength and bravery to impress people. Littlefoot and Cera aren't fooled by Rhett's stories, but Ali is.

[[folder:Milo, Lydia, and Plower - ''Ceratogaulus'']]
Three mammals that live in the caves underneath the Great Valley. Appear in ''Stranger from the Mysterious Above''.

-->'''Voiced by:'''\\
Creator/RobPaulsen (Milo)\\
Anndi [=McAfee=] (Lydia)\\
Meghan Strange (Plower)
* AnachronismStew: ''Ceratogaulus'' or horned gophers lived from the Milocene to the Pleistocene, ''after'' the dinosaurs became extinct.
* NayTheist: Plower was initially skeptical that Spike was "The Big Wise One", but becomes convinced when Spike inadvertently defeats the Great Hideous Beast.
* SeldomSeenSpecies: Probably the first time you see horned gophers in a cartoon.

[[folder:Great Hideous Beast - ''Microceratus'']]
A creature that terrorizes the denizens of the caves underneath the Great Valley. Appears in ''Stranger from the Mysterious Above''

* KillerRabbit: Subverted. Due to his tiny size he can barely pose a threat to Spike, who defeats him and traps him in a rock pile by mere accident.

[[folder:Dara - ''Diplodocus'']]
A kindly old female longneck who travels with Doc. She appears in the TV episode ''The Lone Dinosaur Returns''

-->'''Voiced by:'''\\
Susan Blu
* LoveInterest: For Doc.

[[folder:Scuttle - Crustacean]]
An obstinate crab with the ability to speak the leaf-eater language. Appears in the TV episode ''March of the Sand Creepers''

-->'''Voiced by:'''\\
* {{Expy}}: A greedy, confrontational crab with long eyestalks, a pirate accent, a penchant for telling stories, and a chortling laugh? [[WesternAnimation/SpongebobSquarepants All he's missing is a burger-joint.]]
* {{Jerkass}}
* {{Omniglot}}: He's apparently the only crab capable of communicating with dinosaurs.
* TeethClenchedTeamwork: Because Scuttle is the only person capable of communicating with the [[CallARabbitASmeerp sand creepers]] that have infested the Great Valley, the gang can't afford to refuse his requests. But as scuttle keeps asking for more favors, the gang's patience rapidly wanes-- particularly Cera.

[[folder:Crunch - Crustacean]]
A yellow crab that attacks Spike. Appears in ''March of the Sand Creepers''

* ArchEnemy: To Spike, despite Ducky thinking otherwise. Crunch keeps snapping painfully onto Spike's nose whenever the oppertunity presents itself. Spike eventually gets so irritated that he chases Crunch out of the valley.
* {{Jerkass}}

[[folder:Swooper - ''Harpactognathus'']]
A blind old flier who's lived for years in a cave at Black Rock. He eventually settles in the Great Valley after being guided there by Petrie and Guido. Appears in ''The Hermit of Black Rock''.

-->'''Voiced by:'''\\
* {{Cloudcuckoolander}}: All those years of living as a hermit (and possibly as well as his blindness) have caused him to become acquainted with some cave formations, even giving them names. This is even lampshaded by Guido.
* CoolOldGuy
* PteroSoarer

[[folder:Skip - Mammal]]

-->'''Voiced by:'''\\
* HeliumSpeech: And he resembles a chipmunk to boot.
* MotorMouth