Mollie and James are together and raising a family, which now consists of an older Mikey and his baby sister, Julie. Tension between the siblings arises, and as well with Mollie and James when Mollie's brother Stuart moves in. Mikey is also learning how to use the toilet for the first time.
John Travolta
as James
Kirstie Alley
as Mollie
Olympia Dukakis
as Rosie
Elias Koteas
as Stuart
Twink Caplan
as Rona
Bruce Willis
as Mikey (voice)
Roseanne Barr
as Julie (voice)
Damon Wayans
as Eddie (voice)
Gilbert Gottfried
as Joey
Mel Brooks
as Mr. Toilet Man (voice)
Lorne Sussman
as Mikey
Megan Milner
as Julie (1 year)
