Characters: Power Rangers Dino Thunder
Conner McKnight / Red Tyranno Ranger | (Actor: James Napier)
- Dude. "Computer club"?
- Adaptational Villainy: Ultimately subverted. Unlike his Abaranger counterpart Ryouga who is a genuine Nice Guy, Connor started-off as a Jerk Jock until Character Development kicks in. And even then.
- Character Development: Starts out as a fairly stereotypical Jerk Jock who is condescending toward Ethan and considers his sport more important than his ranger duties. By the end of the show, he is more compassionate, actually cares about the others and tries his best to help.
- Hot-Blooded: Yeah.
- Jerk Jock → Jerk with a Heart of Gold: While not the nicest of Rangers, he eventually mellows out.
- Law of Chromatic Superiority: Taken to ridiculous extremes; see Super Mode. It should also be noted that Conner received his Super Dino Mode first. Averted, however, when Ethan gets the second Cool Bike instead of him.
- The McCoy: He's more impulsive than the other two.
- Right Behind Me: In the season premere he says that Principal Randall is just a woman and women are just grown-up girls, just in time for her to appear and catch him for ditching class to play soccer.
- Simple Staff: His "Tyranno-Staff".
- Super Mode: All the Rangers receive super modes, but he's the only one to receive three of them.
- Super Speed: His civilian power."Now you see me...now you're unconscious."
- Tyrannosaurus rex: His Dino Zord.
- You Look Familiar: His twin brother went to a certain ninja school (a pity they didn't mention this during the actual team-up).
Ethan James / Blue Tricera Ranger | (Actor: Kevin Duhaney)
- An invisible science teacher. That is so totally graphic novel!
- Black and Nerdy: He's an avid gamer and techno geek.
- Genius Bruiser: Since his Civilian powers involve super-strengh...
- Instant Armor: His civilian powers allow him to grow scale-like skin that he can use for protection.
- The Lancer
- Luckily My Shield Will Protect Me: His weapon is a Tricera Shield.
- The Spock: Speaks in techno babble and tends to use his head more often.
- Super Strength: Part of his civilian power.
- Tempting Fate: Lampshaded and invoked.
- Two First Names: Ethan and James are pretty common first names.
Kira Ford / Yellow Ptera Ranger | (Actress: Emma Lahana)
- Did you just call me 'babe'? Did he just call me 'babe'?
- Cute Bruiser
- Dual Wielding
- Idol Singer: Her dream is to be a professional singer.
- The Kirk: Balances Conner's impulsiveness and Ethan's intellect.
- Make Me Wanna Shout: Her civilian power.
- Ship Tease: Has some of this with Trent.
- The Smurfette Principle: Even after two Sixth Rangers joined the team, she still is the only female member.
Dr. Tommy Oliver / Black Brachio Ranger | (Actor: Jason David Frank)
Note: See also the character sheets for Mighty Morphin, Zeo, and Turbo.
- I may be old, but I can still pull it off.
- And Starring: Jason David Frank is the last to be credited, but is featured with this.
- Badass: Were you expecting anything less from Tommy Oliver?!
- Badass Beard: He's grown a pretty cool looking patch of stubble on his chin since we last saw him.
- The Big Guy: The most experienced fighter.
- Broken Ace: If the events of "Fighting Spirit" are any indication.
- The Bus Came Back: His last appearance as main character before this series is Power Rangers Turbo.
- Cerebus Retcon: You know all that dark stuff that happened to Tommy in the first five seasons? It all comes crashing down. "Fighting Spirit" in particular lends itself to this.
- Composite Character: This is Tommy's fifth Ranger identity.
- Dark Is Not Evil: The Black Ranger.
- Deadpan Snarker: "We can talk about your Dino Easter Egg theory..."
- Four Is Death: He's the fourth Ranger on the team and is wearing his fourth color overall. Over the course of the series, he gets frozen in amber, hit with two different instances of Power Incontinence, and is briefly put in a coma.
- Hot Scientist: A male version.
- Invisibility: His civilian power. Was even stuck like this for two eps.
- I Was Quite a Fashion Victim: To his defense, long hair was cool back in the 90s!
- Living Legend: His reputation has surpassed Jason's, due to having been four colors (green, white, red, and black), and having been leader of three teams of rangers. Both in and out-of-universe, he is considered the "Greatest Ranger Ever" and for good reason.
- The Obi-Wan: A non-lethal example.
- Older and Wiser: Compared to the Mighty Morphin to Zeo days.
- Power Incontinence: Twice; the first time, he got stuck in his morphed form by the White Drago Ranger, and the other time, he got stuck in his invisible form.
- Same Character, but Different: Entirely justified considering it has been six seasons since the last time we saw him (not counting Forever Red, where he was more or less similar to how he is in this show).
- Seen It All: Tends to give off this vibe at times. Then again, he is considered by many to be the greatest Ranger in history for a reason.
- Still Got It: Though it's not like he ever lost it.
Trent Fernandez-Mercer / White Drago Ranger | (Actor: Jeffrey Parazzo)
- I know I've got a lot to make up for, but I promise - this time, I won't let you down.
- Ascended Fanboy: He gets to meet a comic book artist he admires and the two even work on a comic together after Trent is forced to tell him he's the White Ranger (Anton bankrolls it without telling him).
- Because You Were Nice to Me: Despite their differences, Trent has a strong attachment and an Undying Loyalty towards Anton because he adopted him and was the only one to care after he was orphaned. It comes to backfire him horribly after his teammates find out that Anton is Mesogog and Trent has been covering it all along.
- Brainwashed and Crazy: he gets better
- Card-Carrying Villain: His White Ranger persona was this at first:
- "I am evil, you are good. It's a quite simple concept."
- Cloning Blues/Evil Twin: Because Abarekiller is evil/morally ambiguous for the majority of Abaranger, Trent was given an evil clone so that they could use more of the stock footage.
- Cool Sword: It shoots energy arrows!
- Decomposite Character: Because he pulled a Heel-Face Turn quite early compared to his Abaranger counterpart who is the Eleventh Hour Ranger, a White ranger clone was made to complement the source footage.
- Evil Sounds Deep (when brainwashed)
- Happily Adopted: Dr. Mercer took Trent in after his biological parents died at an archaeological dig. Their relationship may be strained most of the season, because of Mesogog, but they clearly care about each other and Trent still has no problem calling him "Dad".
- Light Is Not Good: Despite being white, his Gem started out as made of "pure evil".
- Lonely Rich Kid: At the beginning.
- Morality Pet: To Anton.
- Not So Different: From Tommy. Trent is a Ranger with a chest shield and a dragon Zord who starts out evil due to being Brainwashed and Crazy but then joins the team he once fought against.
- Parental Abandonment: Both his parents died in an accident, so Anton effectively adopted him.
- Ship Tease: Has some of this with Kira. However, since the series focuses more on Trent's strained relationship with his father Anton, this is not further developed and by the finale they end up as Just Friends.
- Sixth Ranger: Fifth to be exact.
- Super-Powered Evil Side: The White Ranger at first, who gradually takes more and more control over him until he's finally freed and can utilize his powers.
- Unknown Rival: To Conner and Zeltrax.
- "Well Done, Son!" Guy: Not that he ever admits it. Thanks to some Character Development, he grows out of it in the end.
Hayley Ziktor | (Actress: Ismay Johnston)
- Benevolent Boss: Runs Hayley's Cyberspace Cafe. Treats her employees there with respect. When Trent messed up due to being fatigued by the White Ranger powers, she shows more concern than annoyance.
- Gadgeteer Genius: Built the morphers, the bikes, half of the Mezodon...
- Mission Control: though she does share this role with Tommy.
- Shout-Out: Her last name is probably one to Karl Ziktor, the main villain of VR Troopers.
Anton Mercer | (Actor: Latham Gaines)
- Corrupt Corporate Executive: At first.
- Dark and Troubled Past: He used to work with Tommy on combining dino DNA with technology. The lab and island that they worked on was destroyed, but both Anton and Tommy survived. Anton, along with Tommy, resurface at Reefside. He was not pleased at all to see Tommy had survived.
- Enemy Within → Enemy Without: With Mesogog.
- Expy: Of Norman Osborn.
- Fantasy-Forbidding Father / Follow in My Footsteps: A point of contention between Dr. Mercer and Trent, as Mercer wants to groom Trent for the business world and thinks his drawing hobby and afterschool job at Hayley's are beneath him. In Mercer's defense, some of his lines suggest that he's preparing Trent to handle being on his own in case he loses his internal battle with Mesogog. In the finale, after he is freed from Mesogog's influence, he is much more supporting towards Trent's hobbies.
- Jerkass: At first, especially towards Trent and Tommy, because he tries to keep the fact that he is Mesogog from them.
- Jerk with a Heart of Gold: Once it's revealed what happened to him, he warms up toward Trent at exactly the same time that Trent discovers his secret, because he allows himself to let down his guard because he no longer has a secret to keep from him.
- It's All My Fault: Blames himself for the accident that turned him into Mesogog.
- Manipulative Bastard: At first.
- No Sense of Personal Space: Especially when interrogating Tommy
- Old Friend: The not-brainwashed Elsa has an unspecified past with Anton, who asks her for a dance in the last episode. They have some Ship Tease as well.
- Papa Wolf: Towards Trent.
- Professor Guinea Pig: He accidentally turned himself into Mesagog after experimenting a potion on himself.
Devin del Valle & Cassidy Cornell | (Actors: Tom Hern and Katrina Devine)
- Alliterative Name: Cassidy Cornell. (And Devin Del Valle comes oh-so-close.)
- Alpha Bitch: Cassidy, though it's a pretty mild case and she gradually becomes a Lovable Alpha Bitch.
- Intrepid Reporter: What Cassidy sees herself as, anyway.
- Last Minute Hookup
- Secret Keeper: In the finale.
- Those Two Guys: Almost to the point of being Spiritual Successors to Bulk and Skull, considering they spent a chunk of the season trying to discover the Rangers' identities.
- Unwanted Glasses Plot: Devin tries to avoid wearing glasses. Then an MOTW creates a bunch of Cassidy clones who all start badgering him at the same time."My mom always say to wear my glasses. But no, I'm afraid of looking like a dork!"
Mesogog/ Anton Mercer | (Actor: Latham Gaines)
- Agony Beam / Mind Rape: His preferred method of keeping his minions in line (he uses it on them more than his actual enemies).
- Badass Longcoat: He wears one.
- Bad Boss: He doesn't take failure lightly and will gladly Mind Rape his henchmen to remind them so.
- Big Bad: For this series.
- Evil vs. Evil: Fights Lothor during the team-up episode with Ninja Storm. He wins and traps him in one of his jars.
- Expy: A Big Bad who was a scientist before going Professor Guinea Pig? Sounds like Master Org/Dr. Viktor Adler. Also reminding of the Lizard.
- Fantastic Racism: Sees Dinosaurs as possessing a DNA superior to Humans', hence his desire to bring them back.
- Knight of Cerebus: He comes after one of the silliest main villains ever, but is pretty much everything Lothor wasn't, having no element of comedy to his character and being a genuinely terrifying villain. His complete utter lack of respect for Lothor makes this even more obvious.
- Knight Templar: He honestly believes he is doing the right thing for the world by trying to wipe out humans and replace them with dinosaurs.
- One-Winged Angel: In the season finale, a replicating one at that.
Elsa/Principal Randall | (Actress: Miriama Smith)
- Badass Adorable: A dark version.
- Brainwashed and Crazy: When she loses her powers, she looks much more human and acts as if emerging from a daze. She later claims to have been under Mesogog's control, and the Mesogog-free Anton is happy to see her.
- Clark Kenting: Lampshaded; when her cover is blown, Tommy notices he should have guessed sooner and Ethan references the trope namer.
- Good Scars, Evil Scars: A black, stitched scar runs from her bottom lip to her chin. Ironically, it acts quite a bit like a 'good' scar (vanishing when she transforms, not detracting from her looks, etc.), but marks her as a villain at the same time.
- Redemption Demotion: Loses all her action abilities when she turns good.
- Meaningful Name: Her first name, Elsa, is both a typical Northern-Europe name (or a shortening of 'Elizabeth'), but also the name of the heroine of one of Wagner's operas, who loves a man she cannot ever see the face of.
- Old Friend: The 'real' Elsa has an unspecified past with Anton, who asks her for a dance in the last episode.
Zeltrax | (Voice actor: James Gaylyn)
- An Axe to Grind: Unless he's using the Cool Sword instead.
- Ascended Extra: In Abaranger, Zeltrax was originally a Monster of the Week named Geildon who died in the first two episodes, while his armor was subsequently used by Jeanne, Elsa's counterpart. Here in Dino Thunder, Zeltrax is given an upgrade to The Rival to Tommy, The Dragon (and later, The Starscream) to Mesogog, and lasts throughout the series.
- Composite Character: He has two-three Abaranger counterparts. The reason for this is because his basis in Abaranger is a cursed suit of armor worn by multiple users throughout the series.
- The Starscream: subverted; the White Ranger tries to conspire against Mesogog with him at some point. Zeltrax, however, immediately warns Mesogog about it. Played straight when he comes back.
- Undying Loyalty: Toward Mesogog at first. Disappears after he got resurrected.
- We Can Rebuild Him: How Mesogog brought him back to life.