Trina Riffin. Katrina "Trina" Riffin is the main antagonist in the Canadian cartoon Grojband. She is Corey Riffin's cruel and snobbish sixteen-year-old sister who wants nothing to do with Grojband whatsoever and is the "best friend" of Mina Beff.
Trina Riffin has been suggested to play 37 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
