Cast of The Ringer

Johnny Knoxville plays the lead character Steve Barker, a man scheming to pose as a contestant in the Special Olympics to clear a debt.

Brian Cox portrays Gary Barker, Steve's unscrupulous uncle who concocts the plan for Steve to pretend to be mentally disabled.

Katherine Heigl takes on the role of Lynn Sheridan, a volunteer for the Special Olympics who becomes Steve's love interest.

Luis Ávalos appears as Stavi, the kind-hearted janitor who loses his fingers, prompting Steve to raise money for his surgery.

Jed Rees plays Glen, one of the Special Olympics athletes who befriends Steve.

Leonard Earl Howze portrays Mark, another Special Olympics athlete who interacts with Steve.

Geoffrey Arend assumes the role of Winston, a fellow athlete in the Special Olympics competing alongside Steve.

Edward Barbanell is featured as Billy, one of the competitors and Steve's new friends in the Special Olympics.

Bill Chott appears as Thomas, a character in the Special Olympics who becomes one of Steve's companions.

Mike Cerrone plays Paulie, a character involved in the storyline centered around the Special Olympics.

Terry Funk takes the role of Frankie, a character who is connected to the ruse that Steve is part of.

Leonard Flowers is cast as Jimmy, one of the Special Olympics participants who interacts with Steve throughout the film.