“Laverne & Shirley,” a “Happy Days” spin-off, stars Williams and Marshall as roommates who work at a Milwaukee bottling plant. Williams’s character was the more uptight of the two.
Marshall died in 2018 at age 75.
Williams also appeared in the 1973 film «American Graffiti» and the 1974 film «The Conversation.»
«Laverne & Shirley», like «Happy Days», was created by Garry Marshall, the brother of Penny Marshall. Penny Marshall got the big role of hers in the mid 70’s with her help.
The show was one of the most popular on television in its prime. Garry Marshall died in 2016.
Henry Winkler, who played The Fonz on «Happy Days,» was among those who mourned Williams.
“Cindy has been my friend and professional colleague since I met her on the set of ‘Happy Days’ in 1975. I haven’t been in her presence once that she hasn’t been kind, thoughtful and kind,” Winkler said.
«Cindy’s talent was limitless. There wasn’t a genre she couldn’t conquer. I’m so glad I met her,» he said.
Williams was born in Van Nuys in the San Fernando Valley of Los Angeles.
He had two children, Emily and Zak. They said that her mother was dedicated to rescuing animals and her faith, and that she wanted the world to laugh.
«Let that laughter continue in everyone, because she would want that,» they said in the statement. «Thank you for loving our mom, she loved you too.»
The Associated Press contributed.