Claim: Stockard Channing starred as Betty Rizzo.
Evidence: She is known for playing Betty Rizzo in the film Grease -LRB- 1978 -RRB- and First Lady Abbey Bartlet on the NBC television series The West Wing -LRB- 1999 -- 2006 -RRB-.
Directed by Randal Kleiser and written by Bronte Woodard , the film stars John Travolta as Danny , Olivia Newton-John as Sandy and Stockard Channing as Betty Rizzo.