text: Don S. Davis as Dr. Fleischer
  Voices
  Bruce Willis as Mikey Ubriacco
  Roseanne Barr as Julie Ubriacco
  Damon Wayans as Eddie
  Mel Brooks as Mr. Toilet Man
  Production
  An extended and re-arranged version of the famous Tri-Star Pictures theme music, originally composed by Dave Grusin and composed and arranged by David Kitay, was played during the scene when Julie practices walking. A variation with the standard version of the fanfare, which was credited at the end, exists at the beginning of the logo when Bruce Willis (voice of Mikey) was doing a Mister Ed imitation.
  Casting
  The bum teaser at the end of the first film portrayed an uncredited Joan Rivers, providing the voice of Julie. Due to scheduling conflicts, she declined the role.
  Also in the early trailer, Richard Pryor was originally going to be the voice of Eddie.
  Also appearing are Olympia Dukakis, Elias Koteas, and Gilbert Gottfried. Further vocal talents include Damon Wayans in a supporting role as the voice of Eddie. Mel Brooks makes a cameo appearance as the voice of Mr. Toilet Man. Director Amy Heckerling's father, Lou, has a small speaking part as Mollie's father. The film was followed by another sequel, Look Who's Talking Now, in 1993.