17 Ans Encore

Zac Efron

Mike O'Donnell (Teen)

Leslie Mann

Scarlett O'Donnell (Adult)

Matthew Perry

Mike O'Donnell (Adult)

Michelle Trachtenberg

Maggie O'Donnell

Allison Miller

Scarlett (Teen)

Thomas Lennon

Ned Gold

Sterling Knight

Alex O'Donnell

Kat Graham

Jamie

Tyler Steelman

Ned Gold (Teen)

Tiya Sircar

Samantha

Melissa Ordway

Lauren

Josie Loren

Nicole

Jim Gaffigan

Coach Murphy

Collette Wolfe

Wendy

Adam Gregory

Dom

Hunter Parrish

Stan

Mario Cassem

Samir

Melora Hardin

Principal Jane Masterson

Brian Doyle-Murray

Janitor

Tommy Dewey

Roger

Lorna Scott

Secretary

Kodi Kitchen

Hostess

Diana Maria Riva

Judge

Ellis E. Williams

Bailiff

Ed Ackerman

School Cop

Will Schaub

Referee

Loren Lester

Mike's Lawyer

Nicole Sullivan

Naomi

Margaret Cho

Mrs. Dell

Larry Poindexter

Dean

Bubba Lewis

Dorky Kid (Ned's Party)

Chris Valenti

Syracuse Scout (1989)

G. Lane Hillman

Kevin (1989)

Hope Riley

Girl (Wyatt)

Jeanine Jackson

Scarlet's Lawyer

Gregory Sporleder

Ohio Scout

Keith Oney

Guy in Crowd

Leonard Wu

Kid (Office)

Liana Blackburn

Cheerleader (1989)

Lindsay Taylor

Cheerleader (1989)

Shelby Rabara

Cheerleader (1989)

Danielle E. Hawkins

Cheerleader (1989)

Katrina Norman

Cheerleader (1989)

Rhapsody Violetti

Cheerleader (1989)

Tiana Brown

Cheerleader (1989)

Taisha Monique Clark

Cheerleader (1989)

Vanessa Lee Chester

Cheerleader

Tyne Stecklein

Cheerleader

Jordan Schatz

Mr. Adams

Jesse Heiman

Mascot (non-crédité)