 Dan Castellaneta (qv), the voice of Homer in The Simpsons,  provides the voice of Beelzebot, the robot Devil. When Fry and Leela  open the door to "Robot Hell", in the bottom right side of the  screen there is a heart with an arrow through etched on the wall,  reading "H.S 4 M.B", meaning Homer Simpson 4 Marge Bouvier, from  _"Simpsons, The" (1989)_ (qv).