Michael John Douglas (born September 5, 1951), better known by the stage name Michael Keaton, is an American actor known for his early comedic film roles, most notably his performance as the title character of Tim Burton's Beetlejuice, and later for his dramatic portrayal of Bruce Wayne / Batman in Tim Burton's Batman and Batman Returns.
When Stan begins to fear falling asleep because of what his "good" side may do in "Cock of the Sleepwalk", he compares him to Michael Keaton. When Francine questions his choice of examples, Stan holds up a picture of himself with Michael, noting that he didn't have to pose for the picture.