(V) = Villain
Racketeer: (V) Member of The High Rollers.
RADigals Gang: (V) All girl gang.
Radioactive Man: A World War II scientist with the Manhattan Project that gained powers from his exposure to uranium-237. His six daughters have all assisted him as Gamma Girl. Pluto his one-time radioactive dog was also his assistant.
Radiogirl: Sidekick wannabe.
Radioman: Hero wannabe that can receive and transmit any known radio signal.
Ragdoll: Member of the High Fives.
Rally Girl: Another former sidekick to Pitch Man, currently a member of the Sidekix.
Rascal, The: (V) Super villain charmer.
Rasslor: (V) Galactic wrestler that challenges heroes to prove their worth.
Ratman: (V) Vigilante hero/villain depending on who you ask. His sidekick, Roachboy has turned good and works exclusively with the Sidekix.
Rebel Yell: Southern hero that works with Bugle Boy.
Red Bullfighter: Dressed as a red matidor, this hero also has wings.
Red Eyes Gang, The: (V) Red haired criminal gang that wears red colored goggles, lead by Big Red.
Red Herring, The: (V)
Red Rake: (V) A villain and a cad.
Red Rover Ranger: World traveller and crime fighter.
Red Tapeworm: (V) Member of the Frankenstein Mobsters.
Referee, The: Hero wannabe.
REMBots: (V) Robots created by Y2Kate.
Replacements, The: On-call second-string super heroes consisting of Cpt. Catfish, Duckman, Hunkster and Supervacman.
Reverse Psychologist: Hero that makes you think you are doing what you want, but instead youíre doing what he wants.
RibEye: (V) member of Dinerís Club.
Riot Grrl: Sidekick wannabe that tends to go berserk, she is looking for a second chance.
Rising Sons: Japanese Teen team of triplets, Catís Grace, Leaping Lightning and Tigerís Paw.
Roachboy: Former sidekick to the vigilante, Ratman that is also a member of the Sidekix.
Roach Coach: (V) Dirty villain that commands legions of tiny roaches.
Roachella: (V) Insect based villain.
Robobitch: (V) Evil robotess.
Robo Hood: Robotic archer
Rocket Girl: Has a rocket pack handed down from her grandfather, Rocketman I.
Rocketman I & Chimmy the Flying Monkey: World War II Campaign City super-hero, long since retired.
Rocketman II: New rocket pack hero aided by Balloon Boy.
Rock Lobster: Musical hero. His sidekick is Skateboard Boy.
Rocky the Flying Rooster: Occassionally assisted The AniPals.
Rollergirl: Amazing acrobat that wears roller skates to fight crime. Member of Femme Five.
Rooter Man: Hero wannabe armed with a plunger and a drain snake.
Rosie the Riveter: (V) Member of The Construction Crew.
Rover Boys Gang: (V)
Rubberband Man: Hero possessing an almost rubbery body that can stretch. He fights any crime that he can reach with his long arm of the law.
Rubber Ducky: Member of the Monumental Men.
Rubbermaid: Stretchy domestic.
Rubberneck: (V) Evil stretcher and member of the Frankenstein Mobsters.
Rugrat: (V) Toddler villain.
Rumbler, The: (V) Evil former wrestler and member of the Lefthanded League.
Rumbozo: (V) Singing strongman in the Circus du Criminel.