The Champ

Andy 'Champ' Purcell

Dink Purcell

Linda Carleton

Sponge

Tim

Tony Carleton

Jonah

Mary Lou Carleton

Boy Taunting Dink (uncredited)

Mexican Champ Manuel Quiroga (uncredited)

The Doctor (uncredited)

Los Angeles Promoter (uncredited)

Referee (uncredited)

Louie the Bartender (uncredited)