 The original voice of Homer on  _"Tracey Ullman Show, The" (1987)_ (qv) and the beginning of the  first season was inspired by Walter Matthau (qv), as the original  sketch of Homer had a large overbite. However,  Dan Castellaneta (qv) dumbed him down and said "my jaw would go  out, my neck would go in, and then my I.Q. would drop about 70  points."