PASADENA, Calif. — The door is firmly shut to Bill Cosby’s return to NBC, the network’s top entertainment executive said Friday.

“That’s safe to say,” NBC Entertainment Chairman Bob Greenblatt said Friday. Thirty years ago Cosby, now 77, was the sitcom king with the network’s “The Cosby Show.”

NBC’s decision to sever ties with the comedian comes in the wake of multiple allegations of sexual assault against him, two lawsuits and a complaint to police this week from a woman who says the comedian sexually abused her in 2008.