Joker. You don't listen, do you? https://batman.fandom.com/wiki/Murray_Franklin?oldid=216208, Robert De Niro has stated that his role as Murray Franklin in, Franklin is also based on former late night talk show host Johnny Carson. Do you wanna tell us a joke?” Joker: “Ok.” pulls out joke book. With Murray Franklin. Portrayed by: He was born in Gotham in 1905. Murray: “So I know you’re a comedian. Murray: “You’ve got a book.