Robin Williams

Robin Williams, a comic and sitcom star in the 1970s who became an Oscar-winning dramatic actor, died Monday at 63 in Marin County. The Marin County Sheriff's Office said he appears to have committed suicide.

The news of the beloved actor’s death rocked the nation. Channels broke into their usual programming to make the announcement, and within minutes, he dominated online trending topics.

Williams was hailed as a comic genius was a star of both movies and television for more than three decades. But he also suffered from substance abuse problems.

The actor "has been battling severe depression of late," his publicist Mara Buxbaum said. "This is a tragic and sudden loss. The family respectfully asks for their privacy as they grieve during this very difficult time."

Williams was found unresponsive at his home in Tiburon at around noon Monday, sheriff’s officials said. He was pronounced dead at the scene.

Dubbed “the funniest man alive” by Entertainment Weekly in 1997, Williams brought audiences hours of laughter, putting his imaginative spin on characters in film and television. He was lauded for his serious roles as well, winning a best supporting actor Oscar for his performance as Sean Maguire, the therapist who counsels Matt Damon’s math genius in “Good Will Hunting” (1997), and receiving nominations for “The Fisher King” (1991), “Dead Poets Society” (1989) and “Good Morning, Vietnam” (1987).

Born in Chicago in 1951, Williams became one of only two students accepted into John Houseman’s prestigious acting program at Juilliard, the other being Christopher Reeve, who became a lifelong friend.

Williams gained fame as Mork, the bizarre, suspenders-sporting alien on the sitcom “Mork & Mindy,” a spinoff from “Happy Days.” Williams departed from the script so often that producers intentionally left blank moments on page for him to have space to indulge his ad-libbing genius.

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