Adam Sandler
Role: Michael Newman
Kate Beckinsale
Role: Donna Newman
Christopher Walken
Role: Morty
David Hasselhoff
Role: Ammer
Joseph Castanon
Role: Ben at 7 years old
Jonah Hill
Role: Ben at 17 years old
Jake Hoffman
Role: Ben at 22-30 years old
Tatum McCann
Role: Samantha at 5 years old
Lorraine Nicholson
Role: Samantha at 14 years old
Katie Cassidy
Role: Samantha at 27 years old
Cameron Monaghan
Role: Kevin O'Doyle
Jennifer Coolidge
Role: Janine
Rachel Dratch
Role: Alice / Alan
Michelle Lombardo
Role: Linda
Nick Swardson
Role: Bed, Bath & Beyond Guy
Sidney Ganis
Role: Dr. Bergman
Michael Yama
Role: Watsuhita Head Executive
Mio Takada
Role: Watsuhita Executive
Eiji Inoue
Role: Watsuhita Executive
Toshi Toda
Role: Watsuhita Executive
George K. Eguchi
Role: Ancient Executive
Katheryn Cain
Role: Kirsten
Frank Coraci
Role: Male Nurse
Iryna Blokhina
Role: Jogger
Emilio Cast
Role: Michael at 10 Years Old
Willy Goldstein
Role: Lakeside Camp Boy
Lily Mo Sheen
Role: Lakeside Camp Girl
Carolyn Hennesy
Role: Kathy O'Doyle
Elena Patten
Role: Samantha's Friend
Cheyenne Alexis Dean
Role: Samantha's Friend
Elliott Cho
Role: Ping Woo
Alan Au
Role: Ping Woo's Father
Ryan Keiser
Role: Firecracker Teen
Christopher Levy
Role: Firecracker Teen
Nickole Reyes
Role: Firecracker Teen
Brianna Davis
Role: Firecracker Teen
Robert Jones
Role: Firecracker Teen
Jenae Altschwager
Role: Judy
Manish Goyal
Role: Habeeboo Entourage
Marco Khan
Role: Habeeboo Entourage
Ahmad Jordan
Role: Habeeboo Entourage
Nick Hodaly
Role: Habeeboo Entourage
Alireza Tanbakoochi
Role: Habeeboo Entourage
John Pagano
Role: Bandleader
Dolores O'Riordan
Role: Singer
Sally Insul
Role: Aunt Peggy
Rob Schneider
Role: Prince Habeeboo (uncredited)
Billy Slaughter
Role: Newman Employee (uncredited)
James Earl Jones
Role: Narrator of Michael's Past (voice) (uncredited)
Theresa Barrera
Role: Susie (uncredited)
Elizabeth DeCicco
Role: Hot Assistant (uncredited)
Abra Chouinard
Role: Hot Employee (uncredited)
Terry Crews
Role: Singing Driver (uncredited)
Howard Fong
Role: Ping Woo's Grandfather (uncredited)
Jorge Garcia
Role: Ammer in SAP scene (uncredited)
Tracy Britton
Role: Office Worker (uncredited)
Jason Sandler
Role: Best Man (uncredited)
Celeste Thorson
Role: Punk Chick (uncredited)
Lana Titov
Role: Wedding Guest (uncredited)
Kyle Brody
Role: Lakeside Camp Boy (uncredited)
Blake Clark
Role: Roy (uncredited)
Lowe Cunningham
Role: Young Mother (uncredited)
Freddie De Grate
Role: Segue Guy (uncredited)
Betsy Hammer
Role: Singer (uncredited)
Dalon Huntington
Role: Vendor (uncredited)
Jen Johnson
Role: Bikini Girl (uncredited)
Spencer Kayden
Role: Bar Patron (uncredited)
Samantha Kelly
Role: Wedding Guest (uncredited)
Traycee King
Role: Bar Patron (uncredited)
Karen Levine
Role: Sexual Harasser (uncredited)
Kat Lombard
Role: Ex-Girlfriend Tamara (uncredited)
Anna Lunberry
Role: Bar Patron (uncredited)
Mark Mahoney
Role: Waiter (uncredited)
Danny McKinnon
Role: Max (uncredited)
Shane Ralston
Role: Parking Attendant (uncredited)
Alexandra Sullivan
Role: Supermodel (uncredited)
C. Michelle Woods
Role: Ex-Girlfriend (uncredited)
