Characters who have appeared only once.
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All items (169)
A
B
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Bat
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Bat-Webbed Booger Being
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Bath Foam
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Bed Cover Monster
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Binky Betsy
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Black-and-White Drawing of Calvin
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Bloatoid
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Blob of gelatinous muck
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Blor-Utar
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Boogeyman
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Box Office Cashier
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Bug Being
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Bug-like carcass
C
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Calvin as a Doctor
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Calvin as a Helmeted Super Hero
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Calvin as an Astronaut
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Calvin as Susie's Husband
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Calvin Controllers
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Calvin in 2-D Form
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Calvin in Black-and-White Form
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Calvin in Chemically Induced Invisible Form
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Calvin in Dog Form
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Calvin in Drawing Form
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Calvin in Film Negative Form
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Calvin in Fire Form
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Calvin in Frankenstein Monster Form
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Calvin in Inch-Tall Form
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Calvin in Mutant Fly Form
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Calvin in Notebook Paper Form
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Calvin in Plane Form
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Calvin in Quarter-Inch Form
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Calvin in Slinky Form
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Calvin in Superhero Form
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Calvin in Swollen Form
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Calvin in Tiger Form
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Calvin in Tiger Form (Transmogrifier alter ego)
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Calvin in Twofold Insect-Sized Form
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Calvin in Unexplained Giant Form
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Calvin in Unexplained Invisible Form
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Calvin in Werewolf Form
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Calvin in Whaler Form
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Calvin of the Future
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Calvin the Ant
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Calvin the Bold
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Calvin the C-Bomb
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Calvin the Criminal
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Calvin the Elephant
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Calvin the Flea
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Calvin the God
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Calvin the Human Light Particle
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Calvin the Human Satellite
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Calvin the Hummingbird
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Calvin the Lightning Bolt
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Calvin the Reptile
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Calvin the Zombie
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Calvin with Life of Pizzazz
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Calvin's Good Side
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Calvin's grandfather
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Calvin's grandmother
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Calvin's parents friend
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Calvin's Skeleton
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Calvin's Stomach Microbes
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Calvin's uncle
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Calvin's Unethicated Duplicates
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Candace
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Captain Napalm (Alter ego)
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Chameleon
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Charlie (barber)
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Chicken (Transmogrifier Gun alter ego)
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Claire
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Communicating Alien
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Conversing aliens
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Crab Teacher
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Crocodile
D
E
F
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Farmer Brown
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Filthy Rich
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Firefighters
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First Husband
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Florist
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Flower (Transmogrifier Gun alter ego)
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Frank
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Fred
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Frog
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Frog (Transmogrifier alter ego)
G
H
J
L
M
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Mabel Syrup
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Maggot-Man
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Mammoth
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Maurice
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Megalon
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Miss Wormwood in Plesiosaur Form
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Moe's friend
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Monster (Alter ego)
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Motherly alien
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Mr. Derkins
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Mr. Kneecapper
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Mrs. Carroll
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Mrs. Derkins
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Mt. Calvin
N
O
P
R
S
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Saber Tooth Hobbes
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Safari Al
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Safe (Transmogrifier Gun alter ego)
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Scavenger Mordon
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School Alter Egos
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Shark
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Slug
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Snow Goons
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Song Sparrow
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Susie as President of the United States
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Susie in Adult Form as a Patient
T
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The Bog Monster
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The Incredibly Annoying Human Echo
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The Man in the Moon
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The World's Most Powerful Computer
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Tommy
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Tommy Chesnutt
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Tornado
U
W
X
Y
Z
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