Keith Walker (June 29, 1935 — December 30, 1996) was an American writer, producer, and actor. He co-wrote the screenplay for the film Free Willy, and wrote for television series including The Fall Guy, Emergency!, Quincy, M.

E. and M*A*S*H." He wrote 26 episodes of the Rod Serling hosted radio show The Zero Hour, all of them coming in the second, and final, season of the show.