John Donald Fiedler (February 3, 1925 – June 25, 2005) was an American actor. His career lasted more than 55 years in stage, film, television and radio. Fiedler's roles included the meek Juror #2 in 12 Angry Men (1957); the benign-seeming gentleman who tries to prevent the Younger family from moving into a whites-only neighbourhood in A Raisin in the Sun (1961); the voice of Piglet in Disney's Winnie the Pooh productions; Vinnie, one of Oscar's poker cronies in the film The Odd Couple (1968); and Emil Peterson, the hen-pecked milquetoast husband on The Bob Newhart Show.

Early life
Fiedler was born in Platteville, Wisconsin, a son of beer salesman Donald Fiedler and his wife Margaret (née Phelan). He was of German and Irish descent.

His family moved to Shorewood, Wisconsin when he was 5, where he graduated from Shorewood High School in 1943. He enlisted in the United States Navy and served until the end of World War II.