The 63-year-old was found dead at his home in Tiburon, Calif., Monday morning, according to the Marin County Sheriff's Office Coroner Division.
The actor touched fans around the world with his memorable movie roles in Mrs. Doubtfire, Dead Poets Society and Good Will Hunting, and his presence will surely be missed on the big screen.
The Oscar-winning star isn't the only comedian to pass before his time. Funnymen Bernie Mac, Chris Farley, Patrice O'Neal and John Belushi died too soon as well.
Take a look back at all the comic talents who left us too soon.
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