Had his breakthrough as mobster Michael Corleone in the Godfather trilogy and won an Academy Award for Best Actor for his role as Frank Slade in the 1992 film Scent of a Woman. He is also known for his starring roles in Dog Day Afternoon, Heat, Scarface and Serpico.
He developed a love for acting at an early age and participated in the majority of his school's productions. As a teenager, he went by the nickname Sunny and developed a reputation as a troublemaker at school.
He earned Tony Awards for his roles in the plays Does a Tiger Wear a Necktie? in 1969 and The Basic Training of Pavlo Hummel in 1977.
His parents' names are Kate and James Gelardi. He had an on-and-off relationship with co-star Diane Keaton while filming the Godfather trilogy. He has two daughters named Julie and Olivia and a son named Anton.
He co-stars with the great Robert De Niro in the films Godfather Part II and Heat.