Adam Sandler
Michael Newman
Acting
Kate Beckinsale
Donna Newman
Acting
Christopher Walken
Morty
Acting
David Hasselhoff
Ammer
Acting
Henry Winkler
Ted
Acting
Julie Kavner
Trudy
Acting
Sean Astin
Bill
Acting
Joseph Castanon
Ben at 7 years old
Acting
Jonah Hill
Ben at 17 years old
Acting
Jake Hoffman
Ben at 22-30 years old
Acting
Tatum McCann
Samantha at 5 years old
Acting
Lorraine Nicholson
Samantha at 14 years old
Acting
Katie Cassidy
Samantha at 27 years old
Acting
Cameron Monaghan
Kevin O'Doyle
Acting
Jennifer Coolidge
Janine
Acting
Rachel Dratch
Alice / Alan
Acting
Sophie Monk
Stacy
Acting
Michelle Lombardo
Linda
Acting
Jana Kramer
Julie
Acting
Nick Swardson
Bed, Bath & Beyond Guy
Acting
Sidney Ganis
Dr. Bergman
Acting
Michael Yama
Watsuhita Head Executive
Acting
Mio Takada
Watsuhita Executive
Acting
Eiji Inoue
Watsuhita Executive
Acting
Toshi Toda
Watsuhita Executive
Acting
George K. Eguchi
Ancient Executive
Acting
Katheryn Cain
Kirsten
Acting
Frank Coraci
Male Nurse
Directing
Tim Herlihy
Doctor
Writing
Iryna Blokhina
Jogger
Acting
Emilio Cast
Michael at 10 Years Old
Acting
Willy Goldstein
Lakeside Camp Boy
Acting
Lily Mo Sheen
Lakeside Camp Girl
Acting
Carolyn Hennesy
Kathy O'Doyle
Acting
Elena Patten
Samantha's Friend
Acting
Cheyenne Alexis Dean
Samantha's Friend
Acting
Elliott Cho
Ping Woo
Acting
Alan Au
Ping Woo's Father
Acting
Ryan Keiser
Firecracker Teen
Acting
Christopher Levy
Firecracker Teen
Acting
Nickole Reyes
Firecracker Teen
Acting
Brianna Davis
Firecracker Teen
Acting
Robert Jones
Firecracker Teen
Acting
Jenae Altschwager
Judy
Acting
Manish Goyal
Habeeboo Entourage
Acting
Marco Khan
Habeeboo Entourage
Acting
Ahmad Jordan
Habeeboo Entourage
Acting
Nick Hodaly
Habeeboo Entourage
Acting
Alireza Tanbakoochi
Habeeboo Entourage
Acting
John Pagano
Bandleader
Acting
Dolores O'Riordan
Singer
Acting
Sally Insul
Aunt Peggy
Acting
Rob Schneider
Prince Habeeboo (uncredited)
Acting
Billy Slaughter
Newman Employee (uncredited)
Acting
James Earl Jones
Narrator of Michael's Past (voice) (uncredited)
Acting
Theresa Barrera
Susie (uncredited)
Acting
Elizabeth DeCicco
Hot Assistant (uncredited)
Acting
Abra Chouinard
Hot Employee (uncredited)
Acting
Terry Crews
Singing Driver (uncredited)
Acting
Howard Fong
Ping Woo's Grandfather (uncredited)
Acting
Jorge Garcia
Ammer in SAP scene (uncredited)
Acting
Tracy Britton
Office Worker (uncredited)
Acting
Jason Sandler
Best Man (uncredited)
Acting
Celeste Thorson
Punk Chick (uncredited)
Acting
Lana Titov
Wedding Guest (uncredited)
Acting
Kyle Brody
Lakeside Camp Boy (uncredited)
Acting