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Characters / The Calvinverse

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This is a list of the characters that appear in more than one installment in the Calvinverse. One-fic characters go on that story's characters page.

Stories with their own characters sheets:

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"Planet Earth is in trouble, and these guys have to protect it. They are…
Calvin, the leader and inventor...
Hobbes, his best friend and confidant...
Socrates, the one who plays the pranks...
Andy, the sarcastic reasonable one...
and Sherman, the genius hamster.
Plus me, the Mini-Time Machine, also known as the MTM, and also known as the Rock.

No one ever calls me that, though."
The MTM in the trailer for Calvin and Hobbes: The Series Season 4 (scroll down)


Voiced by: Pamela Segal

The leader of the group. He's invented many weapons and gadgets that are usually of some use. By Season 4 he becomes a lot more manipulative and innovative.


Voiced by: Tom Hanks

Calvin's best friend. Though he's always harbored a reluctance for adventure, here he's gone to straight-up running away from danger, at least until "Thunderstorm".

Voiced by: Ryan Stiles

A tiger who looks exactly like Hobbes, except with red stripes on his tail. He's The Prankster, and his Cloud Cuckoolander personality fits perfectly with it. No one really likes him, though they keep him around and he has his golden-hearted moments.

  • Not-So-Imaginary Friend: He takes on a similar form to Hobbes when anybody other than Calvin, Andy or Elliot is around.
  • Split-Personality Merge: In The Collective, he fuses with his darker self, having finally realized that the key to controlling his more destructive side was not avoiding it but rather moderating it.

Voiced by: Andrew Lawrence

An eight-year-old boy (named after his voice actor) who starts out with no personality. It doesn't take long for Character Development to kick in, making him the Only Sane Man by the third season. He's also Sherman's owner.

     Sherman J. Hamster 
Voiced by: Colin Mochrie

The Smart Guy of the group, an egoistical one at that. Because of this, his status as The Friend Nobody Likes (save Andy, his owner) goes unchallenged until Season 3, where he becomes friends with Calvin. He's still not fond of Hobbes or Socrates, though.

     The MTM 
Voiced by: Norman Lovett

Arguably the most useful of Calvin's inventions, being a Do-Anything Robot. Though he doesn't have much of a personality in Seasons 1 and 2, when he gains speech in "An MTM Episode", he finally becomes something of a proper character.




     Franklin J. Brainstorm 
Voiced by: Neil Crone

An extremely inept card-carrying Mad Scientist. Though he has invented several objects of note, they almost always malfunction or blow up in some way.

     Jack T. Robot 
Voiced by: Michael Brandon

A snarky robot. Not really evil, but he did have a Morality Dial (that was thankfully removed).

     Rupert Chill 
An alien king out to get Calvin.

Rupert's right hand man and captain of the moronic crew.
  • Aliens Speaking English
  • Bad Boss: He's just as willing to torture the crew, but he has limits.
  • Character Development: His friendship with Rupert continually deteriorates from Lost at Sea onwards, due to the latter's Sanity Slippage, to the point he's genuinely considering a Heel–Face Turn in Retro Chill.
  • Hazey Feel Turn: In Retro Chill - his relationship with Rupert has fallen apart, and then Calvin saves his life, causing him to seriously reexamine his life decisions so far.
  • Only Sane Man: Thanks to Rupert's Sanity Slippage in the rewritten Calvinverse, by the time Double Trouble comes around, Earl is one of the only major villainsnote  who hasn't been completely consumed by madness, bloodlust, and/or idiocy.
  • They Just Don't Get It: For much of the series, he's just as deluded about Calvin being the Earth Potentate, but by Double Trouble, he reveals he's known the truth for some time - he just doesn't care anymore.

     Rupert and Earl's Crew 
A crew of harmless villains under the former two's command.

     Retro Griffin 
A Mad Scientist who kidnapped children sans Calvin and attempted to use their imagination to take over the world, but was defeated and taken to Galixoid and Nebular's planet as punishment.

Human Retro's harmless sidekick. Mainly the Chew Toy.

     Rupert Chill (The Human) 
An insane convict who is the twin brother of John Chill and is a total moron.


     Calvin's Parents 
Calvin's mom is voiced by: Jennifer Love Hewitt
Calvin's dad is voiced by: Bill Murray

Calvin's parents.

     Susie Derkins 
Voiced by: Dakota Fannings

Calvin's neighbor. She is his age and goes to school with him. She is constantly being annoyed by him.

  • Aw, Look! They Really Do Love Each Other: When Calvin nearly drives himself insane trying to be good so that Karma won't hurt him, it's Susie who talks him down.
    Susie: Calvin, you live by your own rules! You make things up! You create! You destroy! You tease temptation! You do all sorts of horrible things, most of them to me, yes, but then there are days you do good all on your own! You shouldn't let something like Karma run your life! You need to be rude and nasty and gross and weird, so that you can be good on your own accord.
  • Belligerent Sexual Tension: While it is still downplayed like it was in the comic strip, Calvin and Susie have had the odd quasi-romantic moment.
  • Berserk Button: While she's harmless enough at face value, all it takes is Calvin throwing a water balloon or a snowball at her to unleash the wrath of hell upon him.
  • Repeat What You Just Said: Sometimes Hobbes will go off on a hypothetical romantic tangent about Calvin's supposed secret feelings for Susie. While the comic strip's Calvin would've usually started fighting him, this version of Calvin prefers the more subtle approach: "I'm sorry. What did you say?" in a dangerously low voice. Hobbes tends to shut up after that.
  • Tsundere: Type B.

Voiced by: Elizabeth Daily

The bully who is constantly harassing Calvin.

     Miss Wormwood 
Calvin's teacher. She's constantly disciplining him.
  • The Alcoholic: Calvin says to Mr Spittle she still drinks Maalox right from the bottle.
  • Stern Teacher: She really seems to dislike imagination. Then again, Calvin's imagining stuff during class...

Calvin's babysitter still appears from time to time.
  • Badly Battered Babysitter: In her first appearance, Rosalyn finds herself involuntarily riding with Calvin and Hobbes in their wagon all across town!

     Galaxoid and Nebular 
Some aliens who appeared towards the end of the original strip. They keep in contact with Calvin and Hobbes during the series.

     The Klein Family 
A family of Inexplicably Identical Individuals (named after their voice actor). They're the only adults Calvin considers "cool". They play a major role in The Collective, where it's revealed that they're Human Aliens who came to guard the Earth, and have been reduced in number.
  • Benevolent Alien Invasion: The reason they're here.
  • Competence Zone: As mentioned above, they're an aversion.
  • Inexplicably Identical Individuals: That's because they're aliens.
  • Healing Factor: When Hobbes accidentally scratches one of them, the wounds heal quickly.
  • Human Aliens: As revealed in The Collective.
  • Motor Mouth: The Klein at the prank store listing the items the Prank Starter Kit contains in "Let Us Prank the Fool":
    "Well, we have your standards. We got your whoopee cushions, we got your squirting flowers, we got your spinning bowties, we got regular ties that roll up like noise-makers, we got your trick wires, we got pies, we got joy buzzers, we got silly string, we got condiments, we got fake gum, water balloons, disguises and mustaches and roller skates and fake hands and fake thumbs and fake toes and a fake nose and wigs and exploding figs and bending twigs and fake wings and ding-a-lings and loads and tons of other things! We got yo-yo's with invisible strings! We got sunglasses with songs to sing! We got dental floss and balls to toss, action Diana Ross! We got magnets and fragments and flip flops and garden crops! We got worms in a bag! We got a suit with a tag! We have also a TV that doesn't change channels! Air conditioners stocked from air from our air conditioned air condition factory!"
  • Tough Room: Averted with the Klein at the carnival; his jokes are apparently uproarious.

     Spaceman Spiff 
One of Calvin's three alter egos who travels around space and fights monsters.
  • A Day In The Lime Light: Inverted since he's the only one of the three altar egos that doesn'tc get an episode based around his life.
  • Affectionate Parody: Of space adventurers.
  • Badbutt
  • Buffy Speak: Frequently. He even refers to Sherman as "small hamster person" when paired up with him in "The Five Calvins".
  • Distressed Dude: Is taken under mind control along with the other alter egos in Double Trouble.
  • Drives Like Crazy
  • Hidden Depths: Was able to figure out the riddle before anyone else in "The Five Calvins".

     Stupendous Man 
One of Calvin's three alter egos who is a superhero.

     Tracer Bullet 
One of Calvin's three alter egos who is a detective that solves crimes.

Alternative Title(s): Swing 123 And Garfieldodies Calvinverse