Mina Beff is the secondary antagonist of the show Grojband. She often helps out Trina Riffin in her evil plots, but mostly doing it out of fear, mostly due to Trina being mean to everybody around her and treating Mina as little more than her henchwoman instead of as a friend, though she has been social with Corey and friends at times. She is also the older sister of Carrie.