---R---

Name: Professor Gerald Robotnik
Japanese Name: プロフェッサー・ジェラルド・ロボトニック, Purofessā Jerarudo Robotonikku
Species: Human
First Comic Appereance: Sonic Archie comic #98
First Game Appearance: Sonic Adventure 2
Abilities: He is able to create many A.I life forms and other various projects.
Other Info: He is the grandfather of Maria Robotnik and Dr. Robotnik, as well as the creator of Shadow the Hedgehog.


Name: Dr. Ivo Robotnik/Dr. Eggman
Japanese Name: ロボトニック, Robotonikku
Nick Name: Dr. Eggman/ドクター・エッグマン, Dokutā Egguman
Species: Human
First Comic Appearance: Sonic Archie comics #0
First Game Appearance: Sonic The Hedgehog 1
First Show Appearance: Adventures of Sonic the Hedgehog
Items used: Chaos Emeralds/many other devices he had created during his lifetime.
Other Info: His name originally was Dr. Ivo Robotnik in the Western Countries and Eggman in Japan. In Sonic Adventure, Sega decided to merge the two names together, creating Dr. Eggman. Dr. Ivo Robotnik remains as his "real" name and Dr. Eggman is his "alias".


Name: Maria Robotnik
Japanese Name: マリア・ロボトニック, Maria Robotonikku
Species: Human
First Comic Appearance: Sonic Archie comics #98
First Game Appearance: Sonic Adventure 2
Other Info: She is the granddaughter of Professor Gerald Robotnik, and is the cousin of Doctor Eggman. Maria suffers from the illness known as "NIDS" (Neuro-Immuno Deficiency Syndrome), which was incurable at the time. Gerald takes on Project Shadow in order to save her.


Name: Amy Rose
Japanese Name: エミー・ローズ, Emī Rōzu?
Nickname: Rosy the Rascal
First Comic Appearance: Sonic Archie comics #25
First Game Appearance: Sonic CD
Species: Hedgehog
Item Used: Piko-Piko Hammer
Abilities: Piko-Piko Hammer, Tarot Cards, Dowsing
Other Info: Amy became Sonic's "biggest fan", even wanting to marry him one day. Amy came across the magical Ring of Acorns and touched it, wishing to be older. The ring granted her wish and although she aged physically, she still had the mind of a ten year old.


Name: Rosie
Species: Woodchuck
First Appearance:
Other Info: The cousin of the late Julayla, and the nanny of the Knothole Freedom Fighters, particularly Sally Acorn, when they were younger.


Name: Rotor
Nickname: Bomber
Species: Walrus
First Comic Appearance: Sonic Archie comics #0
First Game Appearance: Sonic Spinball
Abilities: Very skilled with technology, and very fast underwater.
Other Info: He created many of Knothole Village's surveillance and security systems. Although a bit clumsy, Rotor is a trusted friend to everyone who knows him.


Name: Rouge
Japanese Name: ルージュ・ザ・バット, Rūju za Batto
Species: Bat
First Comic Appearance: Sonic Archie comics #98
First Game Appearance: Sonic Adventure 2
First Show Appearance: Sonic X
Abilities: Kick, Fly, Climb, Swim, Dig, Drill Drive, Hip Drop, Black Wave, Charm Wave
Other Info: She is depicted as a professional treasure hunter devoted to the pursuit of jewels, calling herself the "World's Greatest Thief".