Richard Erdman was an American character actor and occasional film and television director. He appeared in more than 160 films and television productions between 1944 and 2017, mostly in supporting roles. He is most known for his roles in the classic films Stalag 17 (1953) and Tora! Tora! Tora! (1970). In his final years, Erdman found renewed fame through his portrayal of Leonard in the critically acclaimed comedy series Community (2009–2015).

Stalag 17 is a 1953 American war film directed by Billy Wilder. It tells the story of a group of American airmen confined with 40,000 prisoners in a World War II German prisoner-of-war camp "somewhere on the Danube". Their compound holds 630 sergeants representing many different aircrew positions, but the film focuses on one particular barracks, where the men come to suspect that one of their number is an informant. The film was directed and produced by Billy Wilder, who with Edwin Blum adapted the screenplay from the Broadway play of the same name. The play was written by Donald Bevan and Edmund Trzcinski, based on their experiences as prisoners in Stalag 17B in Austria.