Walter Matthau (; born Walter John Matthow; October 1, 1920 – July 1, 2000) was an American actor and comedian, best known for his film roles, including as Oscar Madison in The Odd Couple, based on the play of the same title by playwright Neil Simon, in which he also appeared on broadway theatre, and notably, opposite Audrey Hepburn in Charade. He also appeared in the less successful Odd Couple film sequel some 30 years later, The Odd Couple II. Matthau was known for his frequent collaborations with Odd Couple co-star Jack Lemmon, particularly in the 1990s with Grumpy Old Men and its sequel Grumpier Old Men. He won the Academy Award for Best Supporting Actor for his performance in the 1966 Billy Wilder film The Fortune Cookie. Besides the Oscar, he was the winner of BAFTA, Golden Globe and Tony awards.