Walter Matthau (October 1, 1920 – July 1, 2000) was an American actor best known for his role as Oscar Madison in The Odd Couple and his frequent collaborations with Odd Couple star Jack Lemmon, as well as his role as Coach Buttermaker in the 1976 comedy The Bad News Bears. He won an Academy Award for his performance in the 1966 Billy Wilder film The Fortune Cookie.
Matthau was born Walter John Matthow in New York City's Lower East Side on October 1, 1920, the son of Rose (née Berolsky; from Lithuania), who worked in a sweatshop, and Milton Matthow, an electrician and peddler (from Russia), both Jewish immigrants. His surname has often incorrectly been listed as Matuschanskayasky (see below for a detailed discussion). As a young boy, Walter attended a Jewish non-profit sleepaway camp, Tranquillity Camp, where he first began acting in the shows the camp would stage on Saturday nights. He also attended Surprise Lake Camp. His high school was Seward Park High School.