 The core cast of _"Taxi" (1978)_ (qv) played themselves, with the  notable exception of Danny DeVito (qv), who was busy playing  George Shapiro, and Tony Danza (qv) who did not get along with  Andy Kaufman (qv) at all. When DeVito was asked who would have  played his character Louie if he was playing Shapiro, he suggested  that the simplest option was to simply scratch Louie from the movie.