Comic Alphabet: R

DAMMIT!!!

Well, there's Rictor, Red Skull, Red Hood, Robin, 

Robin II, Robin III, Robin IV, Robin V, Robin 3000, and the other Robin (Carrie Kelley)...

Ringleader, Red Wolf, Reddevil (from Femforce), 

Rock (from Peter David's Hulk days), Redeemer (same), 

Rogue, Rhino, Riptide (from Marvel's Marauders), ROM the Spaceknight,

(sigh) okay...FINE! Rocket Damn Raccoon!