- A.D.A.M.
- Aarde
- Adventures of Sonic the Hedgehog
- Al en Cal
- Albion
- Aleena the Hedgehog
- Alexis Acorn
- Alicia Acorn
- Amadeus Prower
- Amy Rose
- Amy Rose (Sonic Boom)
- Amy Rose (Sonic X)
- Ancient Walkers
- Angel Island
- Angel Island Zone
- Anti-Knuckles
- Anti-St. John
- Antoine D'Coolette
- Archie-tijdlijnen
- Archie-tijdlijnen/Chronologie
- Archie Knuckles the Echidna
- Archie Sonic the Hedgehog
- Archie Sonic the Hedgehog nr. 001
- Archimedes
- Argyle the Crocodile
- Ari
- Armand D'Coolette
- Ash Mongoose
- Athair
- Aurora
- Babylon Rogues
- Badlands
- Badnik
- Barby Koala
- Bark the Polar Bear
- Bean the Dynamite
- Belle D'Coolette
- Bem
- Ben Hurst
- Bernadette Hedgehog
- Big Red Button
- Big the Cat
- Biolizard
- Birdie
- Black Arms
- Black Doom
- Blaze the Cat
- Blue Typhoon
- Bokkun
- Boomer Walrus
- Breezie
- Brotherhood of Guardians
- Bunnie Rabbot
- Buns Rabbot
- Burning Blaze
- Canal J
- Captain Whisker
- Carnival Night Zone
- Cartoon Network (Britse Televisiezender)
- Casino Night Zone
- Casino Street Zone
- Casinopolis
- Chao
- Chaos
- Chaos Control
- Chaos Emerald
- Charmy Bee
- Cheese
- Chemical Plant (Sonic Generations)
- Chemical Plant Zone
- Chip
- Chris Thorndyke
- Christmas Island
- City Escape
- Cluck
- Cobar
- Cocoa Island
- Coconuts
- Colin Kintobor
- Conquering Storm
- Cosmic Interstate
- Cosmo (Sonic X)
- Cosmo the Seedrian
- Council of Acorn
- Crabmeat
- Cream the Rabbit
- Cream the Rabbit (Sonic X)
- Crisis City
- Crocbot
- Croctobot
- Cubot
- Dark Chao
- Dark Gaia
- Dark Legion
- Dark Oak
- De Cosmo samenzwering
- Death Egg
- Decoe & Bocoe
- Deep Power Stones
- Destructix
- Dimitri
- Doctor Eggman
- Doctor Eggman (verwijzing)
- Downtown Ebony Hare
- Downunda
- Downunda Freedom Fighters
- Dr. Finitevus
- Dr. Ivo Kintobor
- Dr. Quack
- Dr. Robotnik's Mean Bean Machine
- Drago Wolf
- Dragon Kingdom
- Duck "Bill" Platypus
- Duke of Soleanna
- Dulcy
- E-10000G
- E-10000R
- E-100 ZERO
- E-101 Beta
- E-102 Gamma
- E-103 Delta
- E-104 Epsilon
- E-105 Zeta
- E-121 Phi
- E-123 Omega
- E-Series
- Echidnaopolis
- Eddy the Yeti
- Edmund
- Een chaotische dag/Transcript
- Een onverschrokken vriend
- Egg Carrier
- Egg Pawn
- Eggman Nega
- Eggmanland
- Eggrobo
- Elias Acorn
- Emerald Coast
- Emerald Hill Zone
- Emerl
- Enerjak
- Erazor Djinn
- Espio the Chameleon
- Extreme Gear
- Fang the Hunter
- Fastest Thing Alive
- Fiona Fox
- Flicky
- Flying Frog
- Freedom Fighters
- Freedom HQ
- Froggy
- Future Freedom Fighters
- G.U.N. Commander
- Gala-Na
- Galaxina
- Geoffrey St. John
- Gerald Robotnik
- Great War
- Green Hill
- Green Hill-thema
- Green Hill (Sonic Generations)
- Green Hill Zone (Sonic the Hedgehog)
- Griff
- Guardian Units of Nations
- Guru Emu
- Harry
- Heads or Tails
- Heavy & Bomb
- Helmut Von Stryker
- Hero Chao
- Hershey Cat
- Hill Top Zone
- His World
- Home
- Honey the Cat
- Hope Kintobor
- House of Acorn
- Huub Dikstaal
- Hyper Metal Sonic
- IDW Publishing
- IDW Sonic the Hedgehog
- Ian Flynn
- Ian St. John
- Iblis
- IceCap Zone
- Iron Dominion
- Iron King
- Iron Queen
- Ixis Naugus
- Jacques D'Coolette
- Janelle-Li
- Jaws
- Jet the Hawk
- Joey Schalker
- Johnny
- Johnny Lightfoot
- Jon Gray
- Juanita the Chameleon
- Julayla
- Jules Hedgehog
- Julie
- Julie-Su
- Kage Von Stryker
- Ken Penders
- Kerstman
- Kiki
- Kingdom of Mercia
- Knecapeon Mace
- Knothole
- Knuckles' Chaotix
- Knuckles (televisieserie)
- Knuckles the Echidna
- Kodos
- Kragok
- Lara-Le
- Lara-Su
- Lien-Da
- Lightning Lynx
- Live and Learn
- Locke
- Lost Tribe of Echidnas
- Lower Mobius
- Luger
- Lupe
- Madeliefje
- Mammoth Mogul
- Manic the Hedgehog
- Manik Acorn
- Marble Zone
- Maria Robotnik
- Marine the Raccoon
- Mario
- Mario & Sonic op de Olympische Spelen
- Mario & Sonic op de Olympische Winterspelen
- Master Emerald
- Maximillian Acorn
- Mayceei the fox
- Mecha
- Mecha Sonic
- Megan Acorn
- Mello
- Melody Prower
- Mephiles the Dark
- Merlin Prower
- Metal City
- Metal Knuckles
- Metal Scourge
- Metal Sonic
- Metal Sonic 3.0
- Metarex
- Metropolis Zone
- Michael Jackson
- Mighty the Armadillo
- Miles "Tails" Prower
- Miles Prower (Anti-Tails)
- Mina Mongoose
- Mobian
- Mobius
- Mobius: X Years Later
- Mobotropolis
- Moebius
- Momma Robotnik
- Monkey Khan
- Multiversum
- Muttski
- Mystic Ruins
- NICOLE
- Naoto Ohshima
- Nate Morgan
- Neo Metal Sonic
- Neo Walkers
- Neuro-Immuno Deficiency Syndrome
- Nic the Weasel
- Nintendo
- No Brainer
- Nocturnus Tribe
- Octobot
- Omochao
- Ongetiteld Sonic-spel
- Operation: EndGame
- Orbot
- Overlanders
- Pachacamac
- Patch D'Coolette
- Patrick Spaziante
- Pir'Oth Ix
- Porker Lewis
- Power Rings
- Predator Hawk
- President
- Princess Alicia Acorn
- Princess Elise
- Professor Pickle
- Queen Alicia Acorn
- Ray the Flying Squirrel
- Remington
- Renfield T. Rodent
- Republic of Acorn
- Ring of Acorns
- Rob O' the Hedge
- Robians
- Robo-Sonic
- Roboticizer
- Robotnik Jr.
- Rosemary Prower
- Rosie
- Rosy the Rascal
- Rotatatron
- Rotor Walrus
- Rouge the Bat
- Royal Secret Service
- Rutan
- SWATbots
- Saffron
- Sage
- Sally Acorn
- Salma the Chameleon
- Sara
- Scourge the Hedgehog
- Scratch & Grounder
- Seaside Hill
- Sega
- SegaSonic the Hedgehog
- Sega Mega Drive
- Sega Superstars
- Sega Superstars Tennis
- Sergeant Simian
- Shade the Echidna
- Shadow the Hedgehog
- Shadow the Hedgehog (Paramount)
- Shadow the Hedgehog (videospel)
- Silver Sonic
- Silver the Hedgehog
- Sir Charles Hedgehog
- Sky Sanctuary (Sonic Generations)
- Skye Prower
- Sleet & Dingo
- Sleuth "Doggy" Dawg
- Snively
- Sol Dimension
- Sol Emeralds
- Solaris
- Soleanna
- Sommersby