''WebAnimation/HappyTreeFriends'' has a [[LoadsAndLoadsOfCharacters rather extensive cast of characters]]. In each episode, at least one character is given a starring role, while others play supporting roles. Some do not even show up in a given episode. At least one character [[OnceAnEpisode almost always dies in each episode.]]


-->"Caring and sharing is cause for charming cheers!"
-->Voiced by: Kenn Navarro

A cute yellow rabbit who has pink cheeks and is always wearing pink bunny slippers. Cuddles is the main character of the series more so than anyone else, and is one of the four "original" Tree Friends. Despite his cute nature, he has been shown to be a bit of a rebellious Tree Friend who enjoys skateboarding, snowball fights, and daredevil acts. He was the second Tree Friend created (Shifty was the first Tree Friend created), appears in most advertisements, and to date holds the highest death count in the series.

* AndIMustScream: ''Can't Stop Coffin''' just can't give poor Cuddles a break. His screaming inside of the titular coffin is drowned out by multitudes of distractions and loud noises. This leads to him clawing his fingers to the bone trying to scratch his way out, almost burning to death before being "saved" by water entering the coffin and proceeding to almost ''drown'' him, to being saved from that by a ''car breaking through the coffin and having one of its wheels grind down on his face'', all while being unable to do anything about it. This doesn't even kill him, as at the very end of the episode he tries to crawl away from the coffin after it opens, moaning in pain before the aforementioned car ends up crushing him to death.
* BlushSticker: Permanent ones, too.
* BuriedAlive: In ''Can't Stop Coffin''. He doesn't stay alive for long, however.
* ButtMonkey: Besides Handy, he has the lowest survival rate out of all the characters.
* CreatorCameo: One of the creators voices him.
* HeliumSpeech: In ''From A to Zoo''. Later on, his [[EyeScream eye]] is impaled on the nozzle and his screams become higher and higher in pitch before he finally dies.
* IronicName: His name is "Cuddles" but he's actually a daredevil who's quite fond of risky sports, and being naturally mischievous to boot.
* InterspeciesRomance: He's together with Giggles in most episodes, who's a chipmunk.
* JerkWithAHeartOfGold: Cuddles can be a little self-centered and inconsiderate at times, such as pushing Flaky down a water slide against her will.[[note]]It also led to her death.[[/note]] But otherwise, he's very kind toward others.
* OfficialCouple: With Giggles.
* OnlySaneMan: The ''very rare'' chance that Flaky isn't playing this role, it's him.
* PinkGirlBlueBoy: Inverted - his favorite color is pink.
* RealMenWearPink: Pink bunny slippers, to be exact.
* [[ScrewySquirrel Screwy Bunny]]: In ''From A to Zoo''.
* SensitiveGuyAndManlyMan: The Manly Man to Toothy's Sensitive Guy.
* SeriesMascot: Cuddles is most prominently used to advertise the show. He usually appears solo in promotional art.
* TooDumbToLive: In "Water You Wading For", when he jumps in a waterhole that has a no-swim sign.
** Of course, it's possible that he didn't see the sign. However, he definitely plays it straight in ''From A to Zoo''. Don't poke a baboon (or a rhinoceros).
* TurbineBlender: In ''Spin Fun Knowing Ya'', and again[[note]] depending on if a copy of the episode counts as a second time[[/note]] in ''Blast from the Past''. And while it isn't a literal turbine this time around, he suffers a similar fate in ''Party Animal''.

-->Voiced by: Lori Jee

A friendly pink chipmunk who wears a red hair bow. Giggles is one of the four "original" Tree Friends and is most often played as a girly girl, along with Petunia (with whom she is best friends). She also cares strongly for the environment, and will lose her cute nature when she sees someone littering or polluting. Despite being the one most often paired with other Tree Friends for Valentine's Day episodes, she and Cuddles are seen as the "default pairing" of the series.

* ArtisticLicenseBiology: She's a tailless chipmunk.
* BewareTheNiceOnes / BerserkButton: Anything that damages the environment. In "Every Litter Bit Hurts", she ties herself and Sniffles (without his consent) to prevent Lumpy from cutting a tree down. Her reaction to Sniffles dying as a result is to make Lumpy's truck swerve and crash by putting herself in his way.
* TheChick: Portrayed as a girly girl who is sometimes the DamselInDistress.
* DamselInDistress: Often spoofs this, particularly in ''Better Off Bread'' and ''See You Later, Elevator''.
* GranolaGirl: In ''Every Litter Bit Hurts''.
* InterspeciesRomance: She's together with Cuddles in most episodes, who's a rabbit.
** She has gone out with half of the male cast, which include Mole (who's a [[ADogNamedDog mole]]), Captain Russell (a sea otter), Cro-Marmot (a [[HumanPopsicle frozen]] [[ADogNamedDog marmot]]) and Flippy (a bear). She once swooned over Lumpy, who's a moose.
* OfficialCouple: With Cuddles, although she is the character most often paired up with others.
* TertiarySexualCharacteristics: She has long eyelashes, [[PinkGirlBlueBoy pink fur]], and wears a [[HairDecorations bow on her head]].
* TomboyAndGirlyGirl: The girly girl to Flaky's tomboy.
* TorsoWithAView: ''Every Litter Bit Hurts.''
* TurbineBlender: In ''Wingin' It''.

-->"Using a toothbrush is tantamount for twinkling teeth."
-->Voiced by: Warren Graff

An unlucky purple beaver named for his [[MeaningfulName large, gapped buckteeth]]. Toothy is one of the four "original" Tree Friends and is most often played as the everyman. The creators of the show feel he doesn't have enough of a personality, and plan to bring him out of his shell in later episodes. His trademark injuries have to do with his eyes, mostly as shout outs to his most famous episode, ''Eye Candy''.

* BeeAfraid: So far, he's been attacked by bees a total of three times, twice of which resulted in a bee sting to the eye.
* ButtMonkey: Most of the time, due to his many painful eye injuries and low survival rate.
* DepravedDentist: To Nutty in "Nuttin' But the Tooth"; was a drill '''''THAT''''' necessary for a toothache?
* EyeScream: His [[UnluckyEverydude trademark]] injury/death since ''Eye Candy''.
* OnlySaneMan: The ''very rare'' chance that Flaky (and Cuddles, sometimes) isn't playing this role, it's him.
* SensitiveGuyAndManlyMan: The Sensitive Guy to Cuddles' Manly Man.
* YouthfulFreckles

-->"For a lazy lunch, try leftover loaf!"
-->Voiced by: David Winn

An idiotic blue moose whose lack of intelligence often lands himself and others into trouble while driving the plot for many episodes. Lumpy is one of the four "original" Tree Friends and to date has the official highest kill count and starring count in the series. Despite his stupidity, he often holds high ranking jobs (such as a doctor), and is sometimes placed with the care of the smaller Tree Friends. He shows signs of greed as well, as visited in several episodes.

* AssholeVictim: When portrayed as a villain.
* AxCrazy: In the {{pilot}} episode, he kills Giggles, Cuddles, and Toothy just because they ''laughed at him''.
* BigBrotherInstinct: When the smaller Tree Friends are in his care, he'll go to great lengths to try and protect them - even if he usually winds up killing them or himself in the process.
* TheBigGuy: He is the tallest of the Tree Friends.
* CrouchingMoronHiddenBadass: In ''Doggone It!'', he took on a giant squid with a ''mousetrap''! And ''won''!
** He also fought Fliqpy and won on more than one occasion.
** And ''Wipe Out'' reveals he's a pro surfer, even managing to juggle chainsaws while hanging ten!
** He climbs a rope with a freshly paralyzed back in ''Take a Hike'', and the rescue he (almost) pulls off at the end of ''The Wrong Side of the Tracks'' also counts.
* CruelAndUnusualDeath: Along with Sniffles, he suffers some of the worst deaths.
* DirtyCoward: In ''Wingin' It'', Lumpy uses many electronic devices in a passenger jet in flight, disrupting its navigational systems. When the plane starts to malfunction, Lumpy kicks out the plane's door, sucking several characters to their inevitable deaths, and takes ''all'' of the parachutes for himself, forgetting to properly put on even one.
* DisproportionateRetribution: He, along with Flippy, Handy, and Sniffles, kills Flaky, just because she popped the raft with her quills.
* TheDitz: Lumpy's stupidity is the driving force behind the plots of many episodes.
* {{Expy}}: Of [[WesternAnimation/RockyAndBullwinkle Bullwinkle]], to the point that the creators had to invert the direction of his antlers to keep him from looking ''too'' much like Bullwinkle.
** And he sounds a little like WesternAnimation/{{Goofy}} if you think about it...
* JackassGenie: Unintentionally in ''As You Wish.''
* {{Jerkass}}: In some of his roles, such as in ''We're Scrooged!'' and ''Dunce Upon a Time''.
* KarmicDeath: A large portion of Lumpy's deaths relate to him doing something thoughtless, usually while on the job.
** In ''Concrete Solution'', Lumpy hides the fact he accidentally killed Handy by hiding him in the cement they were pouring. Later he's crushed by the block of cement with Handy's corpse pressed in it.
* LethalKlutz: His stupidity has caused so many deaths that he has an official kill count higher than that of even ''Evil Flippy/Fliqpy.'' In fact, he hold the highest official kill count in the series...mostly due to his stupidity.
* LethallyStupid: TropeCodifier. His stupidity caused sooooooo many deaths. The creators said the reason Lumpy has so many different jobs is because his incompetence causes havok wherever he goes, and gives different situations.
* LifeOrLimbDecision: In ''Out on a Limb''.
* LiteralGenie: In ''As You Wish'', where he plays a genie in a (table) lamp. His wishes cause grave injuries or death to the other characters.
* MadeOfIron: Despite being the most unintelligent Tree Friend in the cast, he is the one who survives the most - a more common occurrence is [[LethallyStupid "Too Dumb For Those Around Him To Live"]]. It seems to have a reason - he is the tallest and probably strongest of the cast excluding Splendid, so the times he doesn't die immediately, he often gets injured. In the TV season, he has survived falling off a highway overpass onto the road below and then getting run over by Lifty and Shifty's van (''Concrete Solution'') and getting hit head-on by a truck and getting entangled in a bicycle (''A Change of Heart'').
* MooseAreIdiots: Probably the most glaring example.
* NiceGuy: In most of his appearances.
* NonStandardCharacterDesign: Not only does Lumpy tower over the other Tree Friends, he also lacks the round faces that every other character has. He looks the most like the animal he is, compared to the other Tree Friends. He is also one of the few characters (along with Sniffles) who does not have a heart nose.
* OutOfCharacterMoment: He plays the [[VillainProtagonist villain]] in ''We're Scrooged!'', killing Toothy in order to sell his body parts for profit. In the TV episode ''Dunce Upon a Time'', which is a WholePlotReference to ''Literature/JackAndTheBeanstalk'', Lumpy takes on the role of the lumbering giant of the castle in the sky, killing the other characters to make his meal and when they try to escape.
** There are times when Lumpy has [[SmartBall bursts of intelligence]], which goes against his usual TheDitz portrayals.
*** In ''Doggone It'', he was the only one to realize the reason for [[KillerRabbit Whistle's]] attacks.
*** In ''A Sight for Sore Eyes'', he realized the danger The Mole's blindness poses to everyone and gave him a guide dog to replace his cane.
*** In ''We're Scrooged!'', he quickly managed to make a paddle with his own eye to prevent Sniffles from leaving the shop.
*** So far he is the only one to be aware of the causes of Flippy's PTSD, since in ''Without a Hitch'' and ''Random Acts of Silence'', several characters who appear to be aware of Flippy's PTSD tought that he would flip out randomly, while in ''Double Whammy Part 1'' he figured out the cause of his problem and attemped to cure it.
*** He managed to finish the bridge in ''Concrete Solution'' despite his coworkers being dead.
*** In ''A Change of Heart'', he managed to save Disco Bear's life by giving him a heart transplant...with an ''orca's heart''.
* PrecisionFStrike: He has a tendency to say "What the hell?" when something goes wrong, except for in ''Doggone It'', where it's this.
* ScreamsLikeALittleGirl: Lumpy speaks with a deep voice, but in his death throes and instances of torture, he has a high-pitched scream.
* SmartBall: How Lumpy defeats Evil Flippy and the zombies in "Remains to be Seen".
* TooDumbToLive: Inverted most of the time (an exception being the episode ''The Chokes On You'').
* VillainBall: "Dunce Upon a Time".

-->Voiced by: Nica Lorber

A nervous, cowardly red porcupine whose quills are [[MeaningfulName full of dandruff]]. Flaky is the subject of a long-standing gender dispute, though most of the creators and fans refer to her as a female. Her official gender description on the website is a question mark. She is very cautious, scared of nearly everything, and is prone to motion sickness. Despite this, she can be very brave if the situation calls for it.

On April 28, 2012, on the Twitter for ''Happy Tree Friends'', in reply to someone's tweet, it was an actual discussion about Flaky's gender and they intentionally stated Flaky was a girl, confirming Flaky's gender.

* ActionGirl: She manages to land a runaway plane BY HERSELF in ''Wingin' It''.
* AmbiguousGender: WordOfGod (usually) says girl. WordOfGod also likes trolling the fanbase, as seen in ''Something Fishy.'', when she couldn't decide whether to go into the men's or women's restroom ([[spoiler:in the end, she went into the women's restroom, which proved disastrous, because the plumbing was infested by Russell's deadly piranha fish.]]).
* {{Badass}}: She proves that she can be this through the fact that she's the only one who realizes Flippy is crazy and tries to put an end to his lunacy, when she [[EyeScream stabs him]] in ''Without a Hitch''.
* BewareTheNiceOnes: She is one of the more caring characters of the series, sometimes even [[OutOfCharacterMoment going against her fears]] to help someone or throw a surprise party for a SerialKiller (granted, he's only like that when he is reminded of the war). That said, ''Without a Hitch'' has her causing another character harm intentionally, and leading to their death ''because'' of her paranoia alone.
* CompanionCube: A garden gnome she finds in a box in ''Snow Place to Go'', after being stranded along with Lumpy, Russell, Cuddles, Giggles and Toothy. She starts to have a rather creepy, if oddly affectionate and motherly, attitude towards it during her SanitySlippage right before her death.
* CowardlyLion: When she isn't simply cowardly.
* {{Flanderization}}: Flaky starts off somewhat cautious in season 1. She only got scared of things that were truly dangerous. By season 2, she starts to develop fears that were somewhat irrational (i.e. skating, flying, and skiing). By the end of season 2, she's pretty much scared of anything that's nearby her (i.e. chicks). It's starts to tone down in the TV series, when she was seen brave enough to throw a birthday party for Flippy and bring a baby bird back to its nest. However, by season 3, she's pretty much scared over anything (i.e. going in the wrong bathroom).
* GrievousHarmWithABody: She's used as a club by Fliqpy to kill Cuddles with in ''Keeping It Reel''. Considering her quills... ouch.
* HighPressureBlood: When she [[EyeScream bleeds out of her eye]] in one of her Smoochies.
* KarmicDeath: She dies when her airbag dislodges in ''Without a Hitch'' after murdering a non-flipped out Flippy.
* LovableCoward: She is understandably always scared of everything, but her whimpering, stuttering and crying is the cutest thing you'll ever see on the show. Not to mention the moments [[WhenSheSmiles she is actually happy.]]
* OddFriendship: Nutty was the one who was helping her out with her surprise birthday party in ''Party Animal''. The birthday party was for Flippy, which is even more odd considering she should probably be afraid of him.
* OnlySaneMan: When living in a world where you can die by falling down the stairs, getting hit by a coconut in the head or being split in half by a stump she has [[ProperlyParanoid every damn right to be freaked out of her mind.]]
* OutOfCharacterMoment: In "Lesser Of Two Evils". Let's see... she throws a party, when she usually never takes the initiative to do anything. She almost never looks scared in the episode, except for a few moments. Guess who the party is for? FLIPPY. Yes, Flippy. The character she's deadly scared of. [[IdiotBall Usually she knows better than do such a thing.]]
* PricklyPorcupine: She's the only porcupine on the show. Type B almost describes her perfectly, as she is certainly a [[TheWoobie Woobie]] and very shy, but she isn't shunned for her quills which normally don't get in the way unless death is involved.
* ProperlyParanoid: Considering [[EverythingTryingToKillYou what usually ends up happening]] after attempts at even the safest actions, Flaky's fears seem [[LovableCoward considerably less unreasonable]].
* SanitySlippage: ''Without A Hitch'', where she kills Flippy thinking he was going to kill her. She also loses her mind in ''Snow Place to Go'' momentarily.
* ShipTease: Taking the show's standards into account, she is this with Flippy, particluarly ''Lesser of Two Evils'' on both parts, ''Without A Hitch'' on Flippy's part and ''Random Acts Of Silence'' on Flippy's part, again.
* SpikeShooter: Averted, despite the myth about porcupines shooting their quills. Though there has been occasions where her quills had been launched by something else. In ''Rink Hijinks'', for example, she is sucked into a floor waxer and slowly shredded. As she was being spun around her quills start to get launched everywhere, with a good chunk of them going straight into Disco Bear.
* TertiarySexualCharacteristics: Averted - Possibly what leads to the high amount of ViewerGenderConfusion.
* ThreateningShark: She's been attacked by sharks three times over the course of the series: In ''Wipe Out'', ''Happy Trails Pt. 2'', and ''Wingin' It''. Interestingly, she's survived all three of these attacks, only to die to something else.
* TomboyAndGirlyGirl: The tomboy to either Giggles'/Petunia's/Lammy's girly girl.
* TooDumbToLive: In rare occasions, seeing how she is the OnlySaneMan of the show. However, she did play this straight in ''Happy Trails Part 2: Jumping the Shark'', when she sat on an inflatable raft that Lifty and Shift inflated. Because her quills touched the raft, it sank and ended up leading to Lifty's, Shifty's, and her own deaths.
** Also happens in ''Wingin' It'', when she finally lands the abandoned plane. She attempts to slide down the emergency inflatable slide, only for it to pop, due to her quills.
* VomitDiscretionShot: In ''Wingin' It', where the sight of a plane makes her double over and puke just offscreen. [[SubvertedTrope The puddle is seen in the next shot, though.]]
** VomitIndiscretionShot: In the same episode, after [[ProperlyParanoid being told by Mime that there's a chance that they'd get eaten by]] ''[[ProperlyParanoid Godzilla]]'', she hurries to the bathroom to toss her cookies. Due to some turbulence, however, she ends up being thrown around the room, vomiting all the while. Petunia, who entered the bathroom after she left, was naturally horrified, and probably thought it was [[FridgeHorror something else due to the color]]...
* WhyDidItHaveToBeSnakes: Flaky has an odd fear of baby chicks, more so than everything else. Guess what she encounters in the petting zoo in ''A To Zoo''. Weirdly enough, it seems to be just chicks. She doesn't appear to be particularly afraid of any other birds.

-->"Science is seriously satisfying!"
-->Voiced by: Liz Stewart

A nerdy blue anteater with glasses and a pocket protector. Often seen as the brains of the show, Sniffles is a [[HollywoodGeek geek]] who loves science, inventing, Franchise/StarTrek, and superheroes (Splendid especially). He sometimes delves into mad scientist territory on a few occasions, however. There are several episodes dedicated to him and a family of ants who he always tries to eat, though the ants always end up killing him in the end.

* {{Adorkable}}: NerdGlasses and pen protector? Check. Geeky and smart? Check. Some of the most painful, sadistic deaths in the series? ''[[TheWoobie Check]]''.
* AndIMustScream: At the end of "Tongue Twister Trouble", he gets frozen alive.
* AssholeVictim: When against the Ants. [[UnintentionallySympathetic Whether]] [[DesignatedVillain this]] [[RootingForTheEmpire worked]] though...
* BadassBookWorm: As seen in ''Idol Curiousity''.
* CruelAndUnusualDeath: Happens to him a lot, even by Happy Tree Friends standards.
** His most famous death is in the episode, ''Tongue In Cheek'', where the ants install a mind control device on Sniffles and force him to eat a razor-bladed apple, stick his tongue in a shredder, nail his tail to the ground, and have his organs ripped out of his mouth [[AndIMustScream while being aware the whole time]].
* DisproportionateRetribution: He, along with Flippy, Handy, and Lumpy, kills Flaky, just because she accidentally popped the raft with her quills.
** Sniffles himself gets this whenever he tries to eat the ants.
* {{Expy}}: He is possibly based off of WesternAnimation/{{Arthur}} the aardvark. Also the aardvark from TheAntAndTheAardvark, since they are both blue and fail to catch the ants they want to eat.
* {{Flanderization}}: From a normal smart guy to a tactical genius who can create just about anything.
* GadgeteerGenius: He was able to build a functioning rocket ship out of the remains of a school bus and a TimeMachine out of a washer, for starters.
* IneffectualSympatheticVillain: When he's cast as the villain (usually when up against the Ants) expect little to no success on his part. "Tongue in Cheek" being the most prominent, and horrifying, example of this trope.
* MadScientist: Sometimes.
* MisappliedPhlebotinum: He manages to build a mind control helmet and a tiny, fully-functioning robot... [[SuperPersistentPredator only to try and capture ants to eat]]. And the TimeMachine? Built just so he could go back to ''keep his milk from getting spilled''. (Though, the latter was put to better intentions. [[DiabolusExMachina Almost]].)
* MisplacedWildlife: He's a South American anteater in a cast of North American woodland critters.
* NerdGlasses: Complete with tape to hold the lenses together.
* NonstandardCharacterDesign: Like Lumpy, he does not have a heart-shaped nose.
* RazorApples: He's forced to eat one in ''Tongue In Cheek''.
* TheSmartGuy: Usually builds intricate gadgets that drive the plot of some episodes.
* TrademarkFavoriteFood: Ants, even though he's only been able to successfully eat one during the course of the series. [[SuperPersistentPredator He usually goes to great lengths just to capture one]].

-->"Plant plenty of pretty, perfumed, purple and pink flowers!"
-->Voiced by: Lori Jee

A sweet blue skunk who wears a flower on her head and a pine tree car freshener around her neck. Petunia suffers from Obsessive Compulsive Disorder and is quite a neat freak. She is best friends with Giggles and they like to hang around with each other, have tea parties, play with dolls, etc. She tends to die the messier deaths in the series, such as having her face pressed to a grill or getting pulled through a sink. For a long time, she is the only character to have not killed another Tree Friend (though she did kill herself in one episode) until "Breaking Wind" where her lighting a match inside Splendid's toxic gas caused the planet to explode.

* AsideGlance: Does one in "I Nub You" when she couldn't be able to grab a bowling ball.
* DistressedDamsel: Less than Giggles, but still falls into this on occasion.
* DivergentCharacterEvolution: At first, she started out as a PaletteSwap of Giggles, with the exception of her design; she would later grow into the extreme NeatFreak she is now.
* DrivenToSuicide: In ''Wishy Washy'', with a '''''potato peeler'''''. [[{{Squick}} Eeep.]] Although technically she was trying to [[SanitySlippage peel the disgusting slime off her body at the time]]...
** This also marks the only suicide so far in the entire series.
* FlatCharacter: Before becoming a NeatFreak in the TV series, Petunia, as mentioned, was just another Giggles.
* HairDecorations: Wears a pink [[MeaningfulName petunia]] on her head.
* InterspeciesRomance: At first with Mime, who's a reindeer, but then with Handy, who's a beaver.
* NeatFreak: She panics at the mere sight of dirt and filth.
* PottyEmergency: in ''Happy Trails'' as well as ''Wingin' It''; she seems to like her soda and juice-boxes.
* OfficialCouple: With Mime first, then Handy as her most prominent.
* SmellySkunk: Subtly defied - It has never been hinted that Petunia smells bad, but her five showers a day, the flower on her head and the air-freshener necklace ''may'' have something to do with that.
* SuperOCD: ''Wishy Washy'' gratuitously showed us how bad it is with some serious panic attacks.
* TertiarySexualCharacteristics: She has long eyelashes and a flower on her head.
* TomboyAndGirlyGirl: The girly girl to Flaky's tomboy.
* TooDumbToLive / KillEmAll: In ''Breaking Wind'', she lights a match when the atmosphere is intoxicated and causes the entire planet's surface to explode.

-->Voiced by: Michael "Lippy" Lipman

A hyperactive green squirrel who always has several pieces of candy stuck in his fur. Nutty is absolutely addicted to candy or anything sugary, and will sometimes add pounds of sugar to something just to make it sweet enough for him. His constantly-dilated eyes are mismatched with one lazy eye (a side effect from his high sugar consumption), and his vocabulary consists almost entirely of laughing and giggling. His sugar addiction has gotten him in trouble more than a few times.

* AndIMustScream: In "Dunce Upon a Time", Nutty eats beans, which start to grow into a giant beanstalk in the night out of his body painfully. At the end of the episode, it shows that he was ''still alive'' before Giggles kills him with an axe so Lumpy couldn't reach the ground.
* AssholeVictim: Depending on the episode. He's not always a {{Jerkass}} to others, but when he is, expect him to die in the end.
* AxCrazy: Not to Flippy's level, but he still has his moments. Do ''not'' come between him and his candy or games, as proven in False Alarm.
* BewareTheSillyOnes: Non-villainous example. Nutty is not always taken seriously by the other Tree Friends due to his sugar addiction. There are, however, multiple times where he has killed another character deliberately.
* BracesOfOrthodonticOverkill: In ''Chew Said a Mouthful,'' he gets them to hold his jaw together after breaking it on a gobstopper.
* ButtMonkey: Not including episodes where it was never confirmed if he survived or not, Nutty has survived a whopping total of ''9'' episodes in the 44 that he appears in.
* CompanionCube: ''A Sucker For Love'' was [[FallingInLoveMontage almost entirely dedicated]] to his fantasies of various candies... as girlfriends and [[WhyDontYouMarryIt wives]]. Also doubles as a CargoShip.
* {{Determinator}}: Even when he's dying, he'll always try to get loads of candy.
* TheDitz: As a result of his candy addiction, he's not the sharpest knife in the drawer. See TooStupidToLive below.
* DissonantLaughter: He sometimes laughs while he dies.
* ExtremeOmnivore: He'll eat anything that ''vaguely'' resembles candy, from Christmas lights to cement mix and even other characters in costume.
* {{Flanderization}}: From just a sugar addict to pretty much falling in love with candy.
* GRatedDrug: Consuming anything sugary, [[ICantBelieveItsNotHeroin sometimes in tiny amounts]], will send Nutty bouncing off the walls. Prolonged periods without sugar will send Nutty into withdrawal symptoms, becoming irritable and mentally imbalanced.
* GroinAttack: He takes a yo-yo to the crotch in one of the options in ''Nutty's Party Smoochie'', grinding it against his groin so hard that he ''[[KillItWithFire combusts]]''!
* HiddenDepths:
** In one episode he was playing checkers against Sniffles - and was ''winning''. Not something expected from the off-the-walls SweetTooth squirrel, especially not against the resident [[TheSmartGuy Smart Guy]]. Though, considering it's ''Happy Tree Friends'', their game never gets finished.
** If you discount the fact that it's directed towards [[CompanionCube candy]], his {{Imagine Spot}}s in ''A Sucker for Love'' shows him being much more romantic than you'd expect from his normal personality, bringing his "wife" breakfast in bed and even imagining having children. [[BreadEggsMilkSquick Also]], he has a [[MurderTheHypotenuse serious]] jealous side.
* {{Jerkass}}: He will prioritize his insatiable sugar addiction over the lives of others and even of himself.
* LaughingMad: Always. ''Always''. Even when in pain, suffering, or ''dying'' he will intersperse giggling with groaning and screaming.
* MeaningfulName: His name says it all -- he's as nutty as a squirrel's breakfast..
* MismatchedEyes: One eye is black, the other is lazy and colored green.
* PapaWolf: He does ''[[NothingIsScarier some]][[BewareTheSillyOnes thing]]'' to Lumpy in ''Sucker for Love'' after the latter eats his chocolate-children to wind himself up in jail. [[spoiler:Turned out it was all a day dream, but it's still Nutty's dream, after all.]]
* TheSociopath: Their are times were Nutty will endanger the lives of, not only himself, but the people around him as well, and he doesn't seem to care when his actions get them killed.
* SweetTooth: A whole mouthful and then some.
* TakeAThirdOption: Not by intention, but Nutty has a habit of becoming [[TooDumbToLive addicted to various sources.]] As seen in False Alarm, he has an adoptive personality. In said episode, Nutty goes into a habit of playing games shortly after a successful withdrawal from candy. Also, he gets his old habit back after eating a lollipop upon outside of a source of gaming.
* TooDumbToLive: Many of his deaths could have been avoided if he would learn to prioritize his own well-being over a handful of candy.
** In ''Chew Said a Mouthful'' he bites on a jawbreaker and ends up breaking his jaw three times.
** In ''A Sucker for Love'', he scoops up some glass shards and gum balls from a broken gumball machine and shovels them all into his mouth. When he blows a bubble, it pops and the glass shards impale his face.
** In ''As You Wish'', he wishes for a lollipop, tries swallowing the entire thing whole, and promptly chokes to death.
* TrademarkFavoriteFood: No, really?
* VillainProtagonist: In ''A Sucker for Love'', he tries to steal a lollipop from Cub.

-->"A happy home has all the right hardware for any happenstance!"
-->Voiced by: Warren Graff

A helpful orange beaver with [[UnfortunateNames amputated hands]], who is always seen wearing a hard hat, a tool belt, and arm-nub bandages. Despite his handicap, Handy is most often seen doing (or at least attempting) activities that require hands. Ironically, his dam is full of things that are handheld. Whenever he fails at a task or remembers he doesn't have hands, he will pull his trademark look of a frustrated glance into the camera.

* AsideGlance: Once he realizes he does not have hands or tries to do something that requires hands, he will glare into the camera.
* BehindTheBlack: Whenever he successfully does something that requires hands, it's almost always done off-camera.
* BreakingTheFourthWall: Whenever he gets frustrated over his lack of hands, he turns to the camera and snarls.
* BusyBeaver: If there's any construction job to be done, from wooden houses to concrete bridges, he's almost guaranteed to be involved.
* ButtMonkey: A recurring joke is that his lack of hands prevent him from doing certain things, followed by his signature growl of frustration when realizing that said things need hands to be done. There's also the fact that he has the lowest survival rate in the series. Take, for example, "Change in Heart" where he is the only character that dies in the episode.
* DisproportionateRetribution: He, along with Flippy, Lumpy, and Sniffles, kills Flaky, just because she popped the raft with her quills.
* DistressedDude: In ''See What Develops'', he was literally hanging by a thread (with his ''mouth'') while Splendid was deciding whether he should rescue him or stop The Mole.
* GrievousBottleyHarm: In ''Spare Me'', he's hit in the back of the head while drinking soda from a bottle, which causes it to get stuck in his eyesocket while his [[EyeScream eye]] rattles around inside the bottle.
* HandicappedBadass: Why yes, he did build an entire house by himself. Twice.
* HelicopterBlender: In ''Who's to Flame?'', after pushing an unexplained eject button on his helicopter.
* InterspeciesRomance: With Petunia, who's a skunk.
* MrFixIt: He is portrayed as a construction worker...without hands. Yet he manages to perform tasks that require them, including building an entire house. [[BehindTheBlack We just do not see him actually do it.]]
* NiceHat: Wears a hard hat. It has protected him from serious injury and death on a few occasions.
* NonindicativeName: His name is Handy, but he has no hands.
* OfficialCouple: With Petunia.
* SilentSnarker: Would easily be the most fit to say something sarcastic if he could.

[[folder:Flippy and Fliqpy]]
-->"Fire fried food is a feast for a famished soldier."
-->Voiced by: Kenn Navarro (Flippy), Aubrey Ankrum (Fliqpy)

A war-torn green bear who wears a military jacket, beret, and dog tags. His rank is apparently sergeant (by USA stripes; other countries have other rank insignia).

Flippy suffers from severe post-traumatic stress disorder due to the time he spent in the W.A.R (Weaponized Animal Regiment). While his "good" side tends to be one of the kinder and more sociable of the Tree Friends, his 'evil' side "Fliqpy" will emerge whenever he sees or hears something that reminds him of war or death. Once in his evil state (usually dubbed "Fliqpy"), he turns into a highly efficient killing machine, slaughtering everyone around him. He is arguably the most popular character of the series among fans. He stars in ''[[SpinOff Ka-pow!]]'' alongside Splendid and Buddhist Monkey.

* AlasPoorVillain: He doesn't die often, and when he does it's a particular sore spot for the fanbase.
** To date he's died in ''Happy Trails Part 2'', ''Hear Today, Gone Tomorrow'', ''Double Whammy/Autopsy Turvy'', ''Without a Hitch'', ''A Vicious Cycle'' and ''By the Seat of Your Pants''. A relatively low count for a Tree Friend.
* AntiHero: In ''Operation: Tiger Bomb''.
* AntiVillain: [[SlidingScaleOfAntiVillains Type II]]
* ArtEvolution: The show took a while to settle on his appearance while flipped out. In his very first episode he actually looked just like normal Flippy. After that he was drawn with crooked teeth for a while, until these were finally replaced by fangs.
* AxCrazy: His flipped-out state.
* {{Badass}}: Both parts of him are this.
** BadassAdorable: Flippy can still [[BewareTheNiceOnes put up a pretty tough fight even when he isn't flipped]], as we see in ''Double Whammy''.
* '''BearsAreBadNews:''' Flippy actually plays with this trope, being one of the nicest characters in his normal state. However, when he ''does'' [[EnemyWithin flip out]], you'll understand why this trope is in '''bold'''.
* BearyFriendly: His good side plays this straight as an arrow.
* BerserkButton: If Flippy encounters anything that reminds him of war: '''[[ScaryMovie RUN, BITCH, RUN!!!]]'''.
* ConservationOfNinjutsu: In "Double Whammy" an army of evil Flippys and a army of good Flippys are much less resistant than the originals.
* CreatorCameo: Both of the voice actors (good and evil) are creators of the show.
* CreepyShadowedUndereyes: He gets these whenever he goes into Fliqpy mode.
* CurtainsMatchTheWindow: While he normally has black PacMan-like eyes like the rest of the tree folk, he gains GreenEyes when he flips out, which is a darker shade than his light green fur.
* DarkAndTroubledPast: We aren't given too many specifics about his actual time in the W.A.R. until ''Operation: Tiger Bomb'' where it was revealed that the first time he flips out was after [[AccidentalMurder killing his teammates by accident]] and having to hide in one of their corpses to survive.
* DemonicPossession: Fliqpy possesses Cub's bike in "A Vicious Cycle" after being struck by lightning holding it.
* DisproportionateRetribution: He, along with Lumpy, Handy, and Sniffles, kills Flaky [[spoiler:(despite not flipping out)]], just for accidentally popping the raft with her quills.
* EvilLaugh: Fliqpy has a normally deep one, though he uses a more raspy variant in ''Party Animal''.
* EvilSoundsDeep: Fliqpy's voice is much deeper than Flippy's.
* {{Expy}}: Of {{Rambo}}. In his first appearance, his kills mirror that of Rambo.
* EyeScream: Flaky stabs him in the eye in "Without a Hitch", suffering from her own SanitySlippage due to remembering her various deaths at his hands (keep in mind that he never flips out in the episode whatsoever). This leads to him getting hit by a truck.
* FangsAreEvil[=/=]SlasherSmile: [[CuteAndPsycho Fliqpy]], [[NightmareFace always.]]
* GreenAndMean: As Fliqpy.
* HairTriggerTemper: Anything that reminds Flippy of war will trigger his evil side.
* HeavySleeper: As seen in ''Easy For You to Sleigh'' and ''Hear Today, Gone Tomorrow''. In the former, Lifty and Shifty drop a vase on the floor, accidentally turn on the TV, tie him up, and ''drive a forklift around his house'', and he doesn't even stir until [[TheLastStraw they try to steal his cookies and drop a crumb on the floor]].
* HalfDressedCartoonAnimal: Wears no pants.
* HelicopterBlender: In ''Hear Today Gone Tomorrow''.
* ImprovisedWeapon: Fliqpy has a knack for transforming nearby objects into lethal weapons, such as a movie projector, a propeller blade, a rose, a straw, [[SerialEscalation and even a Christmas cookie.]]
* JekyllAndHyde: Flippy and Fliqpy are complete polar opposites of each other, yet Flippy is the only character who can hold his own in a fight with Fliqpy.
* KarmaHoudini: While Flippy often dies, the same can't be said for Fliqpy.
** Though Fliqpy not dying is inverted in ''Remains to be Seen'' and ''By the Seat of Your Pants''.
* KarmicDeath: [[spoiler:In ''Remains to be Seen'', Fliqpy first gets killed when he rams his truck to a tree, killing himself and everyone near him. Then he becomes a zombie and dies again when he gets his brain stuck to a leaf blower and a zombified Toothy bites his brain, causing it to explode.]]
** [[spoiler:Also happens in ''By the Seat of Your Pants'', when he attacks Lumpy, only for him to bounce off of Lumpy's shortened skin (used as a swim trunk) and be impaled by a flagpole (which he survives), where he then attempts to climb out of it, only to be [[RasputinianDeath roped down by Lumpy, disemboweling and killing him]]. Thus, Lumpy is now considered the third character to intentionally kill Flippy (the first be the zombified Toothy, and, indirectly, Flaky, though the latter killed him while he was not flipped out).]]
* KnifeNut: A bowie knife is his iconic killing tool; not that he needs it.
* MoodSwinger: While this is not his disorder, and merely triggered by his BerserkButton, he can go from heartwarmingly friendly one minute to a cold-blooded killer the next.
* NiceGuy: As Flippy.
* ObliviouslyEvil: Flippy never knew that he was killing other Tree Friends until ''Double Whammy''.
* PetTheDog: His episodes contain some moments of this for Flaky. In episodes such as ''Party Animal'', ''Without A Hitch'' and ''Random Acts of Silence'', he doesn't purposely kill her despite killing everyone else around him. This is often seen as either an RelationshipWritingFumble or FanService from the creators for the most popular FanPreferredCouple.
* RasputinianDeath: See KarmicDeath.
* RealMenWearPink: Besides collecting weapons in his bunker-house, he likes flowers, tea parties, [[EverythingsBetterWithPenguins pink penguins]] and unicorns.
* RecurringRiff: Typically, when Flippy is triggered enough to start killing, his transformation is triggered by a quite literal RecurringRiff: a low, descending guitar tone and background sounds of warfare.
* ScaryLibrarian: In ''Random Acts of Silence'' when he flips out.
* ShellShockedVeteran: His post-traumatic stress disorder had manifested itself into both schizophrenia (having hallucinations of his evil self and of many versions of himself and his evil self going into battle) and SplitPersonality (he becomes an entirely different person when something reminds him of war and he doesn't remember the things he's done as his other self either).
* ShipTease: Taking the show's standards into account, he is this with Flaky, particularly "Lesser of Two Evils" on both parts and "Without A Hitch" on Flippy's part. In his flipped out state in "Lesser of Two Evils", "Random Acts of Silence" and "Double Whammy" Flaky is the only character he doesn't kill. In fact, she snapped him out of his flipped out state once with her screams.
** Not that he hasn't ever killed her, however. He's murdered her in his debut, even.
* SplitPersonality
* SuperMode: As of recently, Flippy can trigger Fliqpy mode on the word go, as seen in "Random Acts of Silence"
* SuperStrength: He once stopped the blades of a biplane with ''his bare hands'' during a flip-out.
* TakingYouWithMe: Fliqpy manages to pull this off in ''Remains to be Seen'', driving his truck straight into the Tree Friends, killing himself in the progress.
* VillainProtagonist: Though not intentionally, once Flippy flips out, he kills other characters without remorse or mercy.
* WoobieDestroyerOfWorlds: PTSD is a devastating mental illness, and it's very easy to feel sorry for Flippy, even though he has the second-highest kill count in the series.
* WouldntHurtAChild: Indicated in "A Vicious Cycle". Flippy - in his evil state - simply pushes Cub off his bike before attempting to use it as a weapon. Later, after he (or the bike possessed by his spirit) kills everyone else, Cub happily rides him without being harmed in any way.
** Though he does cause Cub's (and Pop's) death in ''Flippin' Burgers'' when the building inexplicably explodes and crushes him under the door.
* [[RedEyesTakeWarning Yellowish-Green Eyes, Take Warning]]: Fliqpy

-->Voiced by: Sarah Castelblanco

A quiet purple deer (he is actually capable of speech like the others, just choosing rather to be silent) who is ([[MeaningfulName as his name suggests]]) a mime, complete with face-paint and a striped shirt. Mime is very talented at various circus and carnival acts, such as pantomiming, juggling, making balloon animals, fire breathing, and riding unicycles. His reluctance to speak often lands himself and others into trouble, and he will sometimes choose showmanship over actual helpfulness.

* BlushSticker: As part of his mime getup.
* TheCasanova: In ''Easy Comb, Easy Go''.
* CuteMute
* DemotedToExtra: After the TV series. His appearances in season 3 were only a handful. Unfortunately, he hasn't had any luck in the fourth season either; so far making ''no'' appearances.
* EveryoneHatesMimes: Inverted InUniverse. Most characters seem to like him and his tricks.
** But why else would a mime be in a show relying on pain and death?
* HalfDressedCartoonAnimal: Wears no pants.
* NonverbalMiscommunication: He does not speak, but there have been several instances where he tries to make a phone call...and miming over the line.
* OfficialCouple: With Petunia at first, before she started dating Handy.
* OnlyAFleshWound: In ''Wingin' It'', he gets run over by the plane after parachuting to the ground using [[AndIMustScream his face]]. After getting ran over, his eye turns toward the camera, and blinks, showing that somehow, he survived being effectively turned into LudicrousGibs.
* PoorCommunicationKills: See TheVoiceless below.
* ThrowTheDogABone: [[spoiler: In the TV series, when a character has a "starring" role in an episode, expect them to be dead by the end. Mime survives both of his, even if the episodes themselves have [[DownerEnding downer endings]].]]
* TrademarkFavoriteFood: Peanuts, for some reason.
* TheVoiceless: In several episodes he makes brief vocal sounds, such as snoring, gagging, or gurgling. He most likely chooses not to speak or scream out of showmanship.
** [[DeconstructedTrope Deconstructed]] since this often leads to the deaths of those around him. One notable example was "Who's To Flame?" when he called 911 and didn't actually speak to Lumpy on the other end.

[[folder:The Mole]]
-->"Myopic, meandering marches most often lead to macabre mishaps."
-->Voiced by: Dean [=MacDonald=]

A blind lavender mole who wears sunglasses and a dark turtle neck sweater, with a mole on his face. His blindness drives the plot for many episodes, since the creators feel that he and Lumpy are the most inept Tree Friends for any given job. Paired with his blindness is also the inability to speak, possibly because of his sweater. His deaths are limited to the TV series because a producer for the internet seasons has a blind daughter. A lone ''[[SpinOff Ka-pow!]]'' episode, ''Mole in the Big City'', visits the idea that The Mole is an international spy, an actual character trait [[WhatCouldHaveBeen that was cut]] before he was introduced into the series.

* ADogNamedDog
* BeautyMark
** VisualPun: A mole has a mole. Hah.
* BehindTheBlack: Whenever he eats.
* BlindMistake: His biggest form of comedy. He has a tendency to mistake gruesome objects for more commonplace ones.
* TheFaceless: His turtleneck sweater [[NoMouth covers his mouth all the time]].
* HalfDressedCartoonAnimal: No pants.
* HandicappedBadass: As seen in ''Mole in the Big City''.
* IAteWhat?: He's the most frequent character to mistake body parts for food/produce, due to his blindness. He never seems to notice this.
* TheSpeechless: He's never said a single word in any of his appearances.
* SpellMyNameWithAThe: The only character to have the word "the" as part of his name.
* SunglassesAtNight: Possibly justified by the fact that he's ''blind.'' A trivia card mentions he has unseen blue eyes, though.
* TooDumbToLive: Like Lumpy, a more common occurrence being [[InvertedTrope "Too Dumb For Those Around Him To Live"]](exceptions being ''Who's to Flame?'' and ''A Sight For Sore Eyes'').

-->"Parental parents are patient and proud."
-->Voiced by: Aubrey Ankrum

A bumbling tan bear who is almost always seen with a pipe and wears a red hat and robe. Pop is a [[StandardFiftiesFather single father to his son]], Cub, whom he tends to accidentally kill on a regular basis due to his oblivious and slightly dim nature. Despite this, he is actually very caring towards his son and will go out of his way to save him in the few times he knows Cub is hurt or lost. His wife/Cub's mother is dead, as was [[https://twitter.com/ChainKnuckle/status/635121111647170560 confirmed]] in [[WordOfGod a tweet by Ken Navarro]].

* BearyFriendly: He isn't shown interacting with characters other than Cub often, but when he does he is shown to be a good-natured sort.
* {{Badass}}: Pop manages to make a HumongousMecha out of car parts, various tools, and [[BackFromTheDead his son's decapatated head]].
* BumblingDad: His [[ParentalObliviousness obliviousness to his son's safety]] often leads to the latter's often gruesome death.
* TheDeterminator: The few times he ever is aware that Cub is in danger he'll never stop in trying to save his son, up to and including going over a waterfall in ''And the Kitchen Sink'' and successfully fending off a rabid dog in ''Doggone it!''
* EyeScream: One of his deaths in ''Pop's BBQ Smoochie'' is him being impaled through the eye and the back of his head with a kabod stick.
* HelicopterBlender: His first death (''Having a Ball'') has him on the bad end of falling on top of moving helicopter blades.
* HalfDressedCartoonAnimal: His robe and [[NiceHat hat]].
* PapaWolf: See TheDeterminator. In a less extreme example, he becomes unusually confrontational when Nutty steals Cub's lollipop in ''A Sucker for Love''.

-->"Cute kids are cuddly and carefree!"
-->Voiced by: Lori Jee

An adorable tan baby bear, who is always wearing a propeller beanie hat and a diaper/nappy. Cub is Pop's son, and often his deaths are due to his father's oblivious nature. He tends to act stereotypically baby-like (babbling, drooling, etc.), though he has the mobility of a toddler. Because of his babyish nature and innocence, he doesn't usually notice if someone has died or is in pain, and has even played with severed body parts on occasion.

* BabyTalk: Being a baby, this is how Cub talks.
* DemonicPossession: In ''Read 'Em And Weep'', by an EldritchAbomination.
* DeadBabyComedy: ''All'' of his deaths.
* DisneyDeath: In ''And the Kitchen Sink'' when Pop sees Cub's seemingly decapitated head lying in the sand after the two have gone over a waterfall. When he grabs his head, he finds that he was just buried in the sand up to the neck, and Cub lets out a weak cough.
* HumongousMecha: In Cubtron Z.
* InfantImmortality: His entire existence in the show revolves around averting this.
** Played straight in the more recent episodes, "A Vicious Cycle" and "Spare Tire".
* MadeOfIron: In ''And the Kitchen Sink'', Cub survived being scalded by extremely hot water, having his entire lower half of his body disintegrated in a sink garbage disposal, being pulled by the neck with a rope tied to a station wagon whose accelerator Pop floored (in an attempt to free Cub from the sink drain), being dragged by said station wagon while still stuck in the sink, and falling off a waterfall. These injuries and situations usually kill or dismember the older Tree Friends. He only died by drowning in the bathtub when Pop was looking away.
* MissingMom: His mother's absence is never explained.
** Possibly explained in ''Can't Stop Coffin'', where he and Pop are standing over someone's grave; the name is unseen to the audience. [[MoodWhiplash Then he's crushed by a flying tombstone]].

[[folder:Lifty and Shifty]]
-->"No need to be thrifty, just take whats nifty and be back in fifty!"
-->Both voiced by: Kenn Navarro

Two kleptomaniac green raccoon twin brothers, the older of which (Shifty) is always wearing a green fedora. Lifty and Shifty often scam or steal from unsuspecting Tree Friends (mostly [[TooDumbToLive Lumpy]]) in an effort to get rich. They are played as sinister characters with narrow eyes, dark mask-like markings around their eyes, wide grins, and trademark evil snickers. Often times they work together to steal or scam, though they will sometimes fight, kill one another, or abandon the other to die in favor of riches or goods.

* [[AlasPoorVillain Alas, Poor Villains]]: See PetTheDog.
** In general, they suffer from some of the worst deaths in the show and almost always die in whatever episode the pair appears in, and unlike some characters who die often and get better treatment, Mondo has never been nice to these two. It doesn't help that the reason they steal is implied to be because they are/were dirt poor.
* {{Asshole Victim}}s: They die in most episodes they appear in. See {{Jerkass}} below for why they deserve it.
* CainAndAbel: If an opportunity would present itself, Shifty would be the first in leaving Lifty to die. [[KarmicDeath It never ends well for him]].
* CantGetAwayWithNuthin: They have died in EVERY episode of the internet series so far.
** [[KarmaHoudini But managed to do otherwise in some of the TV episodes]][[note]]Most notably "Concrete Solution" where they accidentally run over Lumpy and steal his wallet, and leave him to die as they drive off[[/note]].
* CheshireCatGrin: Often seen with this, this is their trademark feature, along with their laughs.
* DirtyCoward: Shifty. He'll gladly leave his brother to die or even kill him directly if the alternative endangers his own life or their loot.
* EvilLaugh: They are very well known for their laughs, which crosses into GigglingVillain territory. There's even a [[https://www.youtube.com/watch?v=zcuIPLq9iV4 compilation of them]] (as of July 23rd, 2011).
* EvilGenius: To a certain degree of "genius", Lifty seems to be this for the duo, as he is the one seen working on their van and handling equipment.
* FiveFingerDiscount: Though they really have FourFingeredHands.
* GreenAndMean: They have green fur.
* HarmlessVillain: Subverted. While most Tree Friends (barring Fliqpy) will not kill another intentionally in many cases, these two do not have any qualms about harming others or [[CainAndAbel each other]] to reach their ulterior goal. This includes straight-up murder.
* {{The Hyena}}s
* IdenticalTwinIDTag: See NiceHat below.
* {{Jerkass}}es: They swindle, steal, and pillage from the other characters on a regular basis, even if it sends their victims to their deaths.
* JerkWithAHeartOfGold: See PetTheDog.
* KarmicDeath: Most of their deaths are a result of their thievery. Shifty also tends to suffer worse fates between the two for [[AbelAndCain attempting to kill his brother more often than not]].
** In ''Don't Yank My Chain'', they steal a car at a gas station. At the end of the episode, they get run over by a train when the car runs out of fuel right on the track. As a bonus, the original owner(s?) of the car are being dragged along the train when this happens.
** In ''Sea What I Found'', Shifty chooses to save the jewelry Lifty is carrying rather than Lifty himself when the latter gets pinned under an iron bar. The underwater volcano they're over soon proceeds to melt the gold, which covers Shifty. Lifty in turn survives relatively unharmed, only to drown when he tries to grab his now golden brother (presumably to sell).
* LaughablyEvil: Like the others, their deaths are mostly played for laughs. What makes these two even more hilarious is that they have it coming in many cases. Sometimes, you just have to root for the two.
* LaserGuidedKarma: "Laser-Guided" is a bit of an {{understatement}}...
* [[LovableRogue Lovable Rogues]]: Downplayed a bit on the 'Lovable" part, but sometimes, you just gotta root for them for mischief.
* NiceHat: Shifty wears a fedora to differentiate the two.
* PetTheDog / OutOfCharacterMoment: In ''Happy Trails Part 2: Jumping the Shark'', when they try to save everyone by using an inflatable raft to bring everyone back to civilization. Too bad that didn't work quite as they planned.
** In ''Class Act'', as a FunnyBackgroundEvent, Shifty can be seen trying to pull a [[HalfTheManHeUsedToBe badly injured]] Lifty away for help. [[YouHaveOutlivedYourUsefulness Considering what Shifty usually does to Lifty]], this really shows that they really do care about each other.
** The two help Disco Bear with his balding problem in ''Easy Comb, Easy Go''. Probably the first instance where the two rascally raccoons make money honesty.
* RascallyRaccoon: They are the ''de facto'' villains of the series.
* SiblingRivalry: They're sometimes seen fighting over who gets to rightfully keep things they have stolen.
* SiblingTeam: For kleptomania, no less.
* [[TheSociopath Sociopaths]]: [[DependingOnTheWriter Sometimes]].
* ThrowTheDogABone: After dying in every appearance they had in the internet shorts, the television series sees them surviving a few episodes.
* TogetherInDeath: Though their deaths may be spaced out, if one of the siblings die in an episode, the other one falls not too far behind. The only episode (or rather, Break) that averts this is ''Cheesy Does It'', where Shifty has his face melted from insanely hot pizza as Lifty suffers from nothing.
* TooDumbToLive: Their thievery usually goes against common sense, and usually gets themselves killed.
* TrademarkFavoriteFood: A RunningGag in the series is them stealing various meats or cows.
* TheUnintelligible: While other characters can be understood if one listens to them closely enough, Lifty and Shifty usually only speak in complete gibberish. There HAVE been a few times where they can be understood.
* YouHaveOutlivedYourUsefulness: Shifty tends to either kill or leave Lifty behind in order to escape with their loot.
* {{Villain Protagonist}}s: Usually, the episodes they appear in center around them.

-->"Row, row, row your boat down a running river!"
-->Voiced by: Francis Carr

A turquoise pirate sea otter with a Jolly Roger hat, eye-patch, ripped striped shirt, black pants, two peg legs, and a hook hand. Russell dresses and talks like a pirate, with his vocabulary consisting almost entirely of "Yar!" He enjoys the sea and nautical activities, such as fishing, sailing, or hunting for treasure, and he even lives in a house boat (perched in a tree). His early design had him with [[PermaStubble five-o-clock shadow]], but this has been retired since his second appearance onward.

* AmbiguousDisorder: Seems to have some sort of insanity complex; perhaps a form of PTSD, as shown in "Get Whale Soon" and "Snow Place to Go".
* APirate400YearsTooLate: The only pirate in this relatively modern universe.
* AxCrazy: After accidentally killing Lumpy in ''Get Whale Soon''.
* CartoonyTail: He has a flat tail like a beaver. Real-life otters have long tails.
* DigitalPiracyIsEvil: In ''Youtube Copyright School''. Where he learns about the law of copyright on Creator/{{Youtube}}.
* EyepatchOfPower: Or Eyepatch of a Pirate.
* {{Fanboy}}: In ''Youtube Copyright School'', he's a huge fanboy of Lumpy.
* HookHand: Standard pirate equipment.
* GrievousBottleyHarm: Apart from the first four seconds, he spends all of the episode ''Bottled Up Inside'' with his bottle ship pierced through his stomach and chest.
* NiceHat: A pirate hat.
* PiranhaProblem: In ''Something Fishy.''
* {{Pirate}}: Type 2.
* SeadogPegLeg: Russell has all the features of a typical pirate, including not one but two peg legs.
* TalkLikeAPirate: ''Yar!''

[[folder:Disco Bear]]
-->"Don't be a drag. Get down and dance! Can you dig it?"
-->Voiced by: Peter Herrman

A groovy golden bear with an orange afro, yellow leisure suit, yellow bell-bottoms, and platform shoes. Disco Bear is stuck in the 1970's and lives the disco way of life, from his clothing to his dance moves to the music that plays on his alarm clock. He likes to roller blade, ski, and (unsuccessfully) hit on Giggles and Petunia, but most of all he loves to disco dance. However, he also loves deep fried/fatty foods, has a noticeable gut, and lives an unhealthy lifestyle. He takes great pride in his afro and goes to extremes to make sure it's perfect. It took until the TV series for the creators to stop finding him annoying and actually start liking him.

* AssholeVictim: Sometimes.
* CasanovaWannabe: Continuously flirts with the female characters throughout the series. The only female he has not flirted with is Lammy.
* CatchPhrase: "Oh yeah."
* DeepFriedWhatever: Which lead to bad consequences in ''A Change Of Heart'' and ''Ipso Fatso''.
* DiscoDan: Lives in a house with typical 1970's paraphernalia, such as shag carpeting and wood paneling. In early episodes a disco ball would appear out of nowhere to signal his arrival. He even wakes up to it on his alarm clock.
* FlatCharacter: Before the TV series, that is.
* FunnyAfro: Often seen caring for it.
* InformedDeformity: Has a flabby gut due to his poor diet and lifestyle.
* {{Narcissist}}: Admiring his good looks, to the point where his self-esteem drops at the sight of imperfections.
* LaserGuidedKarma: At the end of "Ski Ya, Wouldn't Wanna Be Ya!"
* ScreamsLikeALittleGirl: For a character with a deep voice, he screams in a high-pitched voice when he's in pain.
* TraumaticHaircut: In ''Easy Comb, Easy Go''.

-->"Super squirrel swooping in for the save!"
-->Voiced by: David Winn

A heroic blue flying squirrel who is always seen with a red mask. Splendid is a superhero with super strength/speed, heat vision, the ability to fly, and more. Despite his helpful nature, he always seems to hurt more than he helps. When not saving the world, he's quite the homemaker who enjoys baking and sewing. He is a comic book legend in-universe, and is an idol to Sniffles and Toothy in particular. His only weakness is a [[GreenRock green acorn-shaped rock]] called Kryptonut, which caused his only confirmed death throughout the whole series. He has an evil twin/evil counterpart, Splendont, who ironically is much better at being a superhero. Splendid stars in ''[[SpinOff Ka-pow!]]'' alongside Flippy and Buddhist Monkey.

* AntiHero: A NominalHero
* AssholeVictim: In ''Gems the Breaks''.
* ClarkKenting / PartTimeHero: At the ''Daily Acorn'' as a [[StockSuperheroDayJobs reporter]], no less.
* CoolMask: [[ComicallyMissingThePoint Even while]] ClarkKenting.
* DesignatedHero: {{Invoked}}. He's a super''hero'' in title only.
* DestructiveSaviour: Often causes more problems than he solves.
* EvilCounterpart / EvilTwin: Splendont, complete with [[ColourCodedForYourConvenience Color Coding For Our Convenience]].
* ExposedAnimalBellybutton: Given this for one shot in the episode "Wrath of Con".
* {{Expy}}: Of {{Superman}} and [[RockyAndBullwinkle Rocky]].
* FailureHero / IdiotHero / NiceJobBreakingItHero: His efforts to do good often lead to mass destruction and deaths of others.
* {{Fartillery}}: Introduced in "Breaking Wind". Although ToiletHumor appears occasionally in the show, this episode is the first to show farting.
* FlyingBrick: Has the standard set of superhero powers: {{Flight}}, SuperStrength, SuperSpeed, EyeBeams, SuperBreath, and SuperSenses.
* {{Gasshole}}: Look at all these tropes about ''Breaking Wind''. Have you seen any other character with a fart-related trope about them?
* InformedFlaw: See WhyDidItHaveToBeSnakes - he never shows having any problems from flying at great heights.
* KryptoniteFactor: Kryptonut.
* LackOfEmpathy: He doesn't actually care when someone he is trying to protect dies.
* MikeNelsonDestroyerOfWorlds: In "Breaking Wind", he inadvertently destroys the world.... by farting.
* NewPowersAsThePlotDemands: Comes with being a Superman {{Expy}}. This is made most obvious in "Class Act" and "Breaking Wind"; in "Class Act" he is killed when the school explodes, but in "Breaking Wind" he is [[NighInvulnerability completely unharmed]] when the ''Earth'' explodes.
* NighInvulnerability: Tends to survive things other tree friends can't, which is made abundantly clear in "Breaking Wind" where ''the entire planet explodes'' and he is unharmed. He has so far only died twice, one of which was due to KryptoniteFactor.
* ScreamsLikeALittleGirl: Another deep-voiced character who does this when in pain.
* TheSociopath: He is a superhero out of pure narcissism, and he doesn't actually care when someone dies under his watch.
* SuperStrength
* SuperTeam: The Supremely Sensational Stupendously Spectacular Super Squad, or [=SSSSSuper=] Squad for short.
* VomitIndiscretionShot: At the end of "Gems the Breaks".
* WhyDidItHaveToBeSnakes: The ''Collect Them All'' section states that Splendid has acrophobia, a fear of heights.

-->Voiced by: N/A

A prehistoric yellow marmot who wears a leopard-skin loincloth and carries a club. Cro-Marmot is always seen encased entirely in a large block of ice (except for the irregular episode Dino-Sore Days). Despite this, he will often be seen doing activities (almost always off-camera), and is apparently known for his impressive talents, all unseen by the viewer. His main method of transportation is an ice cream truck.

* BehindTheBlack: ''Everything'' he does.
* BlindingBangs: His hair covers up his eyes.
* [[CuteMute SexyMute]]: Considered this in-universe.
* EatenAlive: [[CruelAndUnusualDeath His death in "Dino-Sore Days"]].
* FlatCharacter: Seen as more of a LivingProp than a genuine character. He is one of the least popular characters in the series.
* HumanPopsicle: Or Marmot Popsicle. He is stuck with a [[PerpetualSmiler perpetual smile]] and [[TheSpeechless never talks]].
* InformedAbility: As revealed in ''Intimate Spotlight'', he's an accomplished writer, painter, and pianist. Also, he has his own brand of foot powder, held a tour on Broadway, is known for his loud antics and energetic performances, and had been titled "Sexiest Happy Tree Friend" in 1992.
* OutOfFocus: Is the least focused-on character in the show.
* TheSpeechless

[[folder:Lammy and Mr. Pickels]]
-->"Long lasting friends don't tend to be fickle. More likely, they would laugh and love to tickle!"
-->Voiced by: Renée T. [=MacDonald=]

A wooly violet lamb who wears a purple hairbow and a white wool sweater, and a pickle dressed in a top hat and mustache. Winners of the ''Vote or Die'' 10th anniversary new character contest held by the Happy Tree Friends website in early 2010, Lammy and Mr. Pickels are the newest additions to the HTF cast. While Lammy appears to be a relatively normal girl, her (seemingly imaginary) friend Mr. Pickels gleefully causes mischief with others, even killing them. As a disturbing twist, when Lammy tries to stop Mr. Pickels from harming others, it's Lammy unintentionally causing pain and grief.


* AxCrazy: Mr. Pickels (intentionally), and Lammy (unintentionally).
* BewareTheNiceOnes
* CompanionCube: In ''A Bit of a Pickle'', Mr. Pickels is shown to be a regular pickle that Lammy considers her ImaginaryFriend.
* {{Expy}}: Of [[Franchise/{{Batman}} the Ventriloquist]]. Both are mild-mannered, friendly people with a murderous MaybeMagicMaybeMundane 'imaginary' friend and companion.
* HairDecorations
* EyeScream: In their debut episode, Lammy is shot in the eye ''with a taser'', and then ''electrocuted''. We later see her with her eye horribly swollen, dark red, and [[{{Squick}} covered in welts]].
** Actually, if you pause while she's being tased, you'll notice she has a crack in her skull. Hmm...
* GreenAndMean: Mr. Pickles, a psychotic murderous pickle.
* HalfDressedCartoonAnimal
* NiceHat: For a pickle, anyway.
* NiceJobBreakingItHero: Lammy's attempts to stop Mr. Pickels end in death and disaster.
* NotSoImaginaryFriend: ''Royal Flush'' seems to show that Mr. Pickels is not just in her imagination, as he kills Flaky while Lammy's whereabouts are accounted for. Note that Mr. Pickels pulls the rug from under Flaky when he's ''supposed to be in the toilet''.
* PokemonSpeak: Lammy speaks with a sheep's bleat. It's most pronounced when she's laughing or panicking.
* SpellMyNameWithAnS: Yes, it's meant to be "Pickels."
* SplitPersonality: It's implied that Mr. Pickels is the result of Lammy having Dissociative Identity Disorder.
* TertiarySexualCharacteristics: Lammy has long eyelashes and, like Giggles, wears a bow on her head. Mr. Pickels, on the male end of the spectrum, wears a top hat and has a mustache.
* TomboyAndGirlyGirl: Lammy is the girly girl to Flaky's tomboy.
* TheVoiceless: Mr. Pickels
* {{Yandere}}: Mr. Pickels doesn't like when Lammy shows affection to others...

!!Buddhist Monkey
-->Voiced by: Jeff Biancalana

A peaceful orange monkey who wears a dark orange Buddhist robe and large prayer beads. Buddhist Monkey is, [[MeaningfulName as his name suggests]], a monkey who practices Buddhism and is normally nonviolent. However, when attacked by Generic Tree Ninjas and others sent from a [[EvilOverlord mysterious, dark overlord]], he sheds his passive outer nature and call upon his extensive martial arts training to kill his enemies. A flashback focused on his training by [[OldMaster Sensei Orangutan]], who had died sometime between the flashback and the series. He is the only main recurring character to not have died yet (although the fact he's only appeared in person in ''Ka-pow!!'' helps immensely). He stars in ''[[SpinOff Ka-pow!]]'' alongside Flippy and Splendid.


* {{Badass}}: Very much so.
** BadassAdorable
** BadassBookworm
* BaldOfAwesome
* BerserkButton: Dare you kill his plant or ruin a library...
* BewareTheNiceOnes
* EverythingsBetterWithMonkeys
* FunnyAfro: Before Sensei Orangutan burnt it off during training.
* MartialPacifist
* MadeOfIndestructium: Especially when compared to [[MadeOfPlasticine everyone else]].
* MindOverMatter: Has limited telekinesis.
* TheObiWan: Sensei Orangutan, also doubles as MentorOccupationalHazard.
* OutOfFocus: He hasn't had an episode in quite a long time (since Ka-Pow's ''Three Courses of Death''). An attempt to create more Ka-Pow episodes has failed, so it is unknown if Buddhist Monkey will ever appear again.
* PunnyName: '''Buddhist Monk'''ey
* SwissArmyTears: His tears brought his potted plant back to life.
* WarriorPoet: Enjoys reading and gardening, can snap your spine in half [[BewareTheNiceOnes if you piss him off.]]

!!Generic Tree Friends

Background characters who, very much like the main cast, can be caught up in messed-up gory glory.

* FacelessMasses: Mostly their faces aren't shown. One of the few exceptions being "Class Act", where Flippy is briefly shown stabbing one to death in the background.
* RecurringExtra

A blue pig who was rejected in favour of Lammy and Mr. Pickles. At least for now...

* AnyoneCanDie: He's been killed at least twice so far ("All in Vein" and "By the Seat of Your Pants"), but all his deaths occur offscreen.
* BlowingARaspberry: Seen doing this as one of his poses.
* TheCameo: Ever since he lost Vote or Die to Lammy & Mr. Pickles, Truffles could only appear through making small cameos in the background of episodes. Ironically, however, he makes more appearances than Lammy & Mr. Pickles.
* DemotedToExtra
* NonStandardCharacterDesign: Like Lumpy and Sniffles, he lacks the common nose style of most characters. While distinctly heart-shaped, it is bigger, has visible nostrils, and is more purplish in color. He also lacks normal hands and feet, having hooves instead, as well as being the only character to bear tusks. His ears and tail are unique as well.
* SpoiledBrat: Truffles has been referenced as a brat by the creators. His personality could also be hinted by his appearance.
* SilentBob: We've never heard his voice. At least not yet.

!!The Ants
-->Voiced by:Kenn Navarro, Ken Pontac, Warren Graff

A family of ants who are Sniffles' arch-enemies. Small but surprisingly deadly.

* ColdBloodedTorture: They inflict this on Sniffles whenever he tries to eat them. For this reason, [[TheScrappy not many fans like them]].
* DisappearedDad: The family consists of a baby, a brother, sister, and mother ant. Where's the father ant? Some fans assume he died prior to the series; most likely eaten by Sniffles.
* DisproportionateRetribution: Why must they torture that poor anteater who only wants a snack?
* FourLeggedInsect: They also lack antannae, except the baby ant who has one antenna on his head like a strand of hair.
* KarmaHoudini: They ALWAYS get away with torturing and killing Sniffles. The closest thing they got to a comeuppance was the baby ant catching Sniffles' cold at the end of "Suck It Up".
* MamaBear: In "A Hard Act to Swallow", the mother ant attacks and goes inside Sniffles to rescue her youngest offspring, who was eaten at the beginning of the episode.
* OutOfFocus: Since "Tongue in Cheek" back in 2006, they have made no appearances in the show, being absent for all of Season 3 and, so far, Season 4 of the Internet series.
* {{Sadist}}: Their torture methods would make even Fliqpy wince.

!!Tiger General
-->Voiced by:Ken Pontac

Leader of the Tiger Soldiers, bent on world domination. Flippy and his squad were sent to assassinate him and foil his plans.


* AbsurdlySharpBlade: His metallic claw is sharp and strong enough to slice off flesh and bone in one go.
* AuthorityEqualsAsskicking: Leader of the Tiger Soldiers, and the ''only'' character ever to give Fliqpy a tough fight.
* {{Badass}}: Oh ''hell yes.'' See AuthorityEqualsAsskicking.
* CommissarCap: Naturally.
* TheDeterminator: His mooks got gunned down? He charged forward and stabbed Fliqpy in the guts. Fliqpy gave him a NoHoldsBarredBeatdown? He countered and severed off Fliqpy's hands. Fliqpy stabbed and disemboweled him? ''He used his own guts to strangle Fliqpy.''
* EyepatchOfPower: Although it looks like a [[HighClassGlass monocle.]]
* FourStarBadass: See AuthorityEqualsAsskicking and {{Badass}}.
* HeroOfAnotherStory: Inverted, he's the BigBad of Another Story.
* HookHand: He replaced his left arm with a metallic claw.
* KnifeNut: Also proficient with a dagger.
* LargeAndInCharge: Like Lumpy, he's one of the taller characters, and he's the leader of an EvilArmy.
* TakeOverTheWorld: His plan, which had Flippy's squad dispatched against him.

!!Sneaky & Mouse Ka-Boom

Flippy's squadmates, dispatched to take down the Tiger Army. Unfortunately, both of them died due to Flippy's incompetence.


* BadassCrew: Unfortunately for them, Flippy isn't as good as they are.
* DemolitionsExpert: Mouse Ka-Boom is a small French mouse with a backpack full of [[StuffBlowingUp explosives.]]
* NonstandardCharacterDesign: Sneaky is the only non-mammalian character aside from The Ants so far.
* TentacleRope: Sneaky is able to use his OverlyLongTongue to grab enemies. Think of [[VideoGame/Left4Dead The Smoker.]]
* TheSneakyGuy: [[MeaningfulName Sneaky.]] Weaponized even, as this allows him to perform stealth kills easily.