Steve Martin
Diane Keaton
Martin Short
Kimberly Williams
George Newbern
Kieran Culkin
B.D. Wong
Peter Michael Goetz
Kate McGregor-Stewart
Jane Adams

Steve Martin as George Banks
Diane Keaton as Nina Banks
Martin Short as Franck Eggelhoffer
Kimberly Williams as Annie Banks-MacKenzie
George Newbern as Bryan MacKenzie
Kieran Culkin as Matty Banks
B.D. Wong as Howard Weinstein
Peter Michael Goetz as John MacKenzie
Kate McGregor-Stewart as Joanna MacKenzie (as Kate McGregor Stewart)
Jane Adams as Dr. Megan Eisenberg
Eugene Levy as Mr. Habib
Rebecca Chambers as Young Woman at Gym
April Ortiz as Olivia
Dulcy Rogers as Ava (the Beautician)
Kathy Anthony as Beautician #2