Martin James Landau (; June 20, 1928 – July 15, 2017) was an American actor, acting coach, producer, and editorial cartoonist. His career began in the 1950s, with early film appearances including a supporting role in Alfred Hitchcock's North by Northwest (1959). He played regular roles in the television series Mission: Impossible (for which he received several Emmy Award nominations and a Golden Globe Award) and Space: 1999.
Landau received the Golden Globe Award for Best Supporting Actor – Motion Picture, as well as his first nomination for the Academy Award for Best Supporting Actor, for his role in Tucker: The Man and His Dream (1988); he received his second Oscar nomination for his appearance in Crimes and Misdemeanors (1989). His performance in the supporting role of Bela Lugosi in Ed Wood (1994) earned him an Academy Award, a Screen Actors Guild Award and a Golden Globe Award. He continued to perform in film and television, and headed the Hollywood branch of the Actors Studio until his death in July 2017.
On July 15, 2017, Landau died at the age of 89 at the Ronald Reagan UCLA Medical Center in Westwood, Los Angeles, California; he had been briefly hospitalized. The cause of death was hypovolemic shock brought on by internal bleeding and heart disease. Landau is buried at the Beth David Cemetery in Elmont, New York.