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.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...
