Steve Martin
George Banks
Diane Keaton
Nina Banks
Martin Short
Franck Eggelhoffer
Kimberly Williams-Paisley
Annie Banks-MacKenzie
George Newbern
Bryan MacKenzie
Kieran Culkin
Matty Banks
BD Wong
Howard Weinstein
Peter Michael Goetz
John MacKenzie
Kate McGregor-Stewart
Joanna MacKenzie
Jane Adams
Dr. Megan Eisenberg
Eugene Levy
Mr. Habib
Rebecca Chambers
Young Woman at Gym
April Ortiz
Olivia
Dulcy Rogers
Ava (the Beautician)
Kathy Anthony
Beautician #2
Adrian Canzoneri
Justin
Lori Alan
Wife Mrs. Habib
Stephanie Miller
Annie Banks (Age 4)
Hallie Meyers-Shyer
Annie Banks (Age 7)
Jay Wolpert
Dr. Brooks
Ann Walker
Dr. Brooks' Nurse
Sandra Silvestri
Jogging Mom
William Akey
Frantic Father #1
Jonathan Emerson
Frantic Father #2
Seth Kaplan
Wild Four-Year-Old
Joshua Duvall Preston
Tantrum Toddler
K.C. Colwell
Father Heading off to Work
Chase Colwell
Adorable Toddler
Tony Simotes
Construction Foreman
Annie Meyers-Shyer
Shower Guest
Linda DeScenna
Shower Guest
Heidi Averill
Shower Guest #2
Chelsea Lynn
Matty's Friend
Sue Colwell
Nina's Customer
Rodrigo Botero
Gang Kid
Vince Lozano
Gang Kid #2
Caroline Lagerfelt
Check-In Nurse
Ilene Waterstone
Check-In Nurse #2
Wendy Worthington
Prostate Nurse
Dorian Spencer
ER Nurse
Harris Laskawy
Prostate Doctor
Roxanne Beckford
Nina's Nurse
Valerie Hemmerich
Nina's Nurse #2
Peter Spears
Dr. Wagner
Susan Beaubian
Annie's Nurse
Mychael Bates
Hospital Orderly
Jerri Rose White
Newborn Megan Banks
Shannon Kennedy
Newborn Megan Banks
Casey Boersma
Newborn George Banks-MacKenzie
Katie Pierce
Two-Month-Old Megan Banks
Dylan Boersma
Newborn George Banks-MacKenzie
Jonathan Selstad
Two-Month-Old George Banks-MacKenzie
Thomas Selstad
Two-Month-Old George Banks-MacKenzie
Christian Boeving
Gym Trainer (uncredited)
Nora Dunn
Realtor (uncredited)
David Novak
Man in Gym (uncredited)
Kylie Travis
Girl in Car (uncredited)