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[Editor's note: Clip definitely not safe for work, watch at your own peril]

The guy whose mouth could give Ari Gold's a run for its money has been silenced.

Veteran character actor Maury Chaykin, who had memorable roles in such films as Dances With Wolves, A Life Less Ordinary and Mystery, Alaska but was arguably best known for his Harvey Weinstein parody in HBO's Entourage, died Tuesday—on his 61st birthday.

Chaykin, who had been battling a kidney ailment, passed away at a Toronto hospital surrounded by his family.

The burly actor was known for his oddball characters, chiefly Entourage's hot-tempered producer Harvey Weingard, who frequently terrorized Vinnie Chase and crew. Chaykin also played the bizarre Maj. Fambrough, who gave Kevin Costner's Lt. John Dunbar the go-ahead to traipse into the frontier in Dances With Wolves.

Other credits included War Games, My Cousin Vinny, The Mask of Zorro and Being Julia. On TV, he starred as super sleuth Nero Wolfe in A&E's A Nero Wolfe Mystery with Timothy Hutton and also appeared such shows as CSI and Boston Legal.

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Take a look back at those we've lost in E! Online's Celebrity Deaths: 2010's Fallen Stars gallery.