1x17 - The Cosby Show

Clair discovers a marijuana joint in one of Theo's school books. She and Cliff confront him about it, and accept his explanation—another boy slipped it in. Theo confronts the boy and brings him home to confess in order to remove any uncertainty from his parents about his telling the truth. Theo and the boy actually start to become friends. Stephen Thompson as Anthony Braxton, Iman as Mrs. Montgomery. Rudy says her full name in this episode, Rudith Lillian Huxtable.