Oliver Burgess Meredith (November 16, 1907 - September 9, 1997) was a versatile American actor. He was known for portraying Rocky Balboa's trainer Mickey Goldmill in the Rocky films and The Penguin in the television series Batman. Contemporary fans recall him as the "Old Man" (Jack Lemmon's father) in the films Grumpy Old Men and Grumpy Old Men II.

One of the truly great and gifted performers of the century who often suffered lesser roles, Meredith was born in Cleveland, Ohio in 1907 and educated in Amherst College in Massachusetts before joining Eva Le Gallienne's stage company in New York City in 1933. He bcame a favorite of dramatist Maxwell Anderson (I), premiering on film in the playwright's Winterset (1936). Served in the Air Force in WWII. He continued in a variety of dramatic and comedic roles until being named an unfriendly witness by the House Un-American Activities Committee in the early 1950s, whereupon studio work disappeared. His career picked up again, especially with television roles, in the 1960s, although younger audiences know him best for either the Rocky (1976) or Grumpy Old Men (1993) films. Meredith also did a large amount of commercial work, serving as the voice for Skippy Peanut Butter and United Air Lines, among others. He was also an ardent environmentalist who believed pollution one of the greatest tragedies of the time, and an opponent of the Vietnam War.