 How many children did Cary Grant have? Ooh, Cary Grant. How many children did Cary Grant have? I don't know why I'm talking like that, but. Who? Cary Grant. Who? The actor. Oh, my gosh. Come on. The historian you are? What did he play? Cary Grant. Let's see. He was Mr. Brewster in Arsenic and Old Lace.