Donald H. "Don" Keefer (August 18, 1916 – September 7, 2014) was an American actor. He was known for his roles in Death of a Salesman, Creepshow, The Twilight Zone, Butch Cassidy and the Sundance Kid, Gunsmoke, and in Liar Liar.
Keefer was born on August 18, 1916 in Highspire, Pennsylvania. He studied at The Actors Studio. Keefer was married to Catherine McLeod from 1950 until her death in 1997. They had three children: Donald, John and Thomas.
Keefer died from natural causes on September 7, 2014 in Sherman Oaks, California. He was 98.