Zac Efron Mike O'Donnell
Michelle Trachtenberg Maggie O'Donnell
Leslie Mann Scarlett O'Donnell
Matthew Perry Mike O'Donnell (Adult)
Kat Graham Jamie
Melora Hardin Principal Jane Masterson
Nicole Sullivan Naomi
Brian Doyle-Murray Janitor
Thomas Lennon Ned Gold
Josie Loren Nicole
Hunter Parrish Stan
Diana Maria Riva Judge
Sterling Knight Alex O'Donnell
Katrina Norman Cheerleader (1989)
Margaret Cho Mrs. Dell
Collette Wolfe Wendy
Allison Miller Scarlett (Teen)
Matt Berberi Stunts
Toby Emmerich Executive Producer
Zack Duhame Stunt Driver
Tiya Sircar Samantha
Loren Lester Mike's Lawyer
Lorna Scott Secretary
Shelby Rabara Cheerleader (1989)
Jim Gaffigan Coach Murphy
Vanessa Lee Chester Cheerleader
Melissa Ordway Lauren
Adam Shankman Producer
Larry Poindexter Dean
Alina Andrei Stunts
Tommy Dewey Roger
Bubba Lewis Dorky Kid (Ned's Party)
Linda Miller Female Janitor
Gregory Sporleder Ohio Scout
Dan Bell Stunt Double
Rachele Brooke Smith Hammer Dancer
Stuart F. Wilson Utility Stunts
Leonard Wu Kid (Office)
Peter Staubli Sound Effects Editor
Lindsay Taylor Cheerleader (1989)
Jeremy Fry Stunt Driver
Jeanine Jackson Scarlet's Lawyer
Ed Ackerman School Cop
Steve Kelso Stunt Driver, Stunt Double
Jason Filardi Writer
Mark Chadwick Stunts
Laura Harris Atkinson Dialogue Editor
Steve Tartalia Stunt Double
Steve Cantamessa Sound Mixer
Adam Gregory Dom
Lisa Beach Casting
Tyne Stecklein Cheerleader
Ray Siegle Stunt Driver
Michael Keller Sound Re-Recording Mixer
Steve Gehrke Script Supervisor
Jake Swallow Stunts
Erik Holmberg Executive In Charge Of Production
Ellis Williams Bailiff
Will Schaub Referee
Jimmy Hart Stunts
Burr Steers Director
Danielle E. Hawkins Cheerleader (1989)
Mandy Kowalski Stunts
Michael Owen Stunt Driver
Tom Elliott Stunts
Jesse Heiman Mascot
Craig Jensen Stunts
Tyler Steelman Ned Gold (Teen)
Jennifer Gibgot Producer
John Ross Sound Re-Recording Mixer
Thomas Jones ADR Editor, Dialogue Editor
Chuck Zlotnick Still Photographer