"He had just celebrated his 89th birthday."
According to The Hollywood Reporter, Landau passed away of "unexpected complications" after a brief stay at the facility.
Landau was best known for his work in Alfred Hitchcock’s 1959 classic North by Northwest, starring in the series Mission Impossible from 1966 to 1969 and The Twilight Zone from 1959 to 1964. He most recently appeared in Entourage and Without a Trace.
In 1995, he took home the Oscar for Best Supporting Actor for his work in the Tim Burton-directed dramatic comedy Ed Wood.
Landau is survived by his ex-wife, Barbara Bain, daughters Susie Landau Finch and Juliet Landau and granddaughter Aria Isabel Landau Finch, 8.
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