Jason Segel heads back to school for Bad Teachers Jason Segel and John Michael Higgins are heading back to school for Bad Teachers. The script, by Lee Eisenberg and Gene Stupnitsky, follows a foul-mouthed, gold-digging seventh-grade teacher who, after being dumped by her current boyfriend, sets her sights on a colleague who is dating the school’s model teacher. Segel plays not the model teacher, who is not yet cast, but rather the gym teacher. Higgins plays the principal, a man named Wally Snur. The pair will join a cast which already includes Cameron Diaz and Lucy Punch. Jake Kasdan is directing for Columbia.