John Joseph "Jack" Nicholson (born April 22, 1937) is a retired American actor, film director, producer and writer. He is renowned for his often dark-themed portrayals of neurotic characters. Nicholson has been nominated for Academy Awards 12 times, winning Best Actor for One Flew Over the Cuckoo's Nest and for As Good as It Gets, and Best Supporting Actor for Terms of Endearment. He is tied with Walter Brennan for most acting wins by a male actor (three), and second to Katharine Hepburn for most acting wins overall (four).

He is also one of only two actors nominated for an Academy Award for acting (either lead or supporting) in every decade from the 1960s to 2000s (the other one being Michael Caine). He has won seven Golden Globe Awards, and received a Kennedy Center Honor in 2001. In 1994, he became one of the youngest actors to be awarded the American Film Institute's Life Achievement Award. Notable films in which he has starred include, Easy Rider, Chinatown, The Shining, Reds, Batman, A Few Good Men, About Schmidt, Something's Gotta Give, and The Departed.