Filmmaker Cass Warner, the granddaughter of Warner Bros. co-founder Harry Warner and the mother of “Yellowstone” actor Cole Hauser, died last week. She was 76. >> Read more trending news ...

Cole Hauser is currently grieving the loss of his mother, Cass Sperling Warner. Last Thursday, the popular actor announced the tragic news via Instagram. There, Hauser, 48, posted a photo of ...

Cole Hauser chats with ET at the NYC premiere of ... in an alleged domestic violence incident. The actor's mother, Cass Sperling Warner, was 76. ET breaks down 'Yellowstone's fifth and final ...