One Man. Many Characters.

It's a strange feeling when someone like him passes away. You know they can't be around forever, but they've been around your whole life.  

In Robin William's four decades in Hollywood he left an unforgettable mark on pop culture. Here are some of the big moments from his life and work: 

1951 - Williams was born in Chicago, Illinois to mother Laura McClaurin and father Robert Fitzgerald Williams

1978 - appeared on Happy Days as the giddy alien Mork, which is then spun off to his own show Mork & Mindy with Pam Dawber

1978 - married his first wife Valerie Velardi

1981 - first appeared on The Tonight Show starring Johny Carson

1987 - won an Emmy for his performance in a variety show co-starring Whoopi Goldberg, Carol Burnett and Carl Reiner

1988 - nominated for his first Oscar for Good Morning Vietnam, playing an unorthodox and irreverent DJ

1989 - married his second wife, Marsha Graces

1990 - nominated for the Best Actor Oscar for his role as an inspirational teacher in Dead Poet's Society

1992 - received his third Oscar nomination for playing a homeless professor in The Fisher King

1992 - voiced the magical pop culture-referencing genie in Disney's Aladdin

1993 - starred in the comedy Mrs. Doubtfire as a divorced man who dresses like a nanny so he can see his children

1995 - played a man trapped in a jungle board game in the children's film Jumanji

1996 - portrayed a gay nightclub owner who pretended to be straight alongside Nathan Lane in The Birdcage

1997 - won the Oscar for Best Supporting Actor for Good Will Hunting, playing a psychiatrist who helps a genius realize his potential

2002 - starred asa mentally unstable man in the dark drama One Hour Photo, a career turning moment

2006 - checked into rehab for alcoholism

2006 - starred as President Teddy Roosevelt in Night at the Museum

2011 - married his third wife, Susan Schneider

2013 - returned to television as the star of The Crazy Ones opposite Sarah Michelle Gellar

2014 - returned to rehab to "focus on continued commitment to sobriety," his rep said

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