Bill Cosby Is a "Bad Boy" Says Fellow TV Dad Alan Thicke

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"When there's that much smoke, there must be some fire," the former 'Growing Pains' star says.

Growing Pains star Alan Thicke has called fellow former TV dad Bill Cosby a "bad boy."

"When there's that much smoke, there must be some fire," Thicke said during an interview with the Toronto Star newspaper at the Television Critics Association's semiannual press tour in Pasadena. "I'm sure that Bill must have been a bad boy. I think the issue will be to what degree," Thicke said.

The Canadian-born TV star produced Cos, Cosby's 1970s variety show on ABC, before going on to become a TV dad on Growing Pains, as Cosby did on The Bill Cosby Show.

"In my history with Bill, I saw absolutely nothing of the controversy around him now. … When I first met Bill, his show was in some trouble ratings-wise, and ABC brought me in to try and get the ratings up," Thicke explained.

Since November, Cosby has been hit with multiple sexual-assault allegations that lay buried for years. The 77-year-old comedian has faced protests and hecklers during his current North American stand-up comedy tour.

Thicke is starring in his own reality show, Unusually Thicke, which airs on Slice in Canada and TVGN in the U.S. market.