Will Ferrell

Brad

Mark Wahlberg

Dusty

Mel Gibson

Kurt

John Lithgow

Don

Linda Cardellini

Sara

Alessandra Ambrosio

Karen

Owen Vaccaro

Dylan

Scarlett Estevez

Megan

Didi Costine

Adrianna

John Cena

Roger

Andrea Anders

Principal Hayes

Yamilah Saravong

Casey

Daniel DiMaggio

Young Dusty

Yimmy Yim

Yimmy

Bill Mootos

Bill

Jose Guns Alves

Security Guard

Naheem Garcia

Santa

Molly Schreiber

Improv Actor

Oscar Wahlberg

Roberto C. Fishman Pratt

Chesley Sullenberger

Brad's Stepdad

Allen Zwolle

Lonely Guy at Theatre

Kyana Fanene

Singer

Bill Burr

Jerry (uncredited)

Liam Neeson

Liam Neeson (voice) (uncredited)

John Franchi

Pedestrian (uncredited)

Frankie Francois

Movie Theater Patron (uncredited)

Colton Osorio

Little Boy (uncredited)

Lance Norris

Hunter (uncredited)

Audrey Fratelli

Waitress (uncredited)

Jim Powers

Parent (uncredited)

Mary Hronicek

Movie Theater Patron (uncredited)

Susan Garfield

Lisa - Box Office Employee (uncredited)