Walter Matthau was an American actor and comedian.
He is most popularly known for his film roles opposite Jack Lemmon, playing Oscar Madison in The Odd Couple, and its 1998 sequel, The Odd Couple II, and Max Goldman in Grumpy Old Men and its sequel, Grumpier Old Men. Matthau also appeared opposite Audrey Hepburn in Charade, and won the Academy Award for Best Supporting Actor for his performance in the 1966 Billy Wilder film The Fortune Cookie. Aside from the Oscar, he won BAFTA, Golden Globe and Tony awards.
On Broadway, Matthau originated the role of Oscar Madison in The Odd Couple play by playwright Neil Simon in 1965.