Buster Keaton as Ronald, The Boy

Anne Cornwall as Mary Haynes, The Girl

Flora Bramley as Mary's friend

Harold Goodwin as Jeff Brown, A rival

Snitz Edwards as The Dean

Carl Harbaugh as Crew Coach

Sam Crawford as Baseball Coach

Florence Turner as A Mother

Lee Barnes as USC Athlete (uncredited)

Robert Boling as USC Athlete (uncredited)

Charley Borah as USC Athlete (uncredited)

Leighton Dye as USC Athlete (uncredited)

Paul Goldsmith as USC Athlete (uncredited)

Kenneth Grumbles as USC Athlete (uncredited)

Charlie Hall as Coxswain (uncredited)

Bud Houser as USC Athlete (uncredited)

Morton Kaer as USC Athlete (uncredited)

Eric Mack as USC Athlete (uncredited)

James T. Mack as High School Principal (uncredited)

Buddy Mason as Jeff's Friend (uncredited)

Madame Sul-Te-Wan as Cook (uncredited)

Grant Withers as Jeff's Friend (uncredited)

Shorty Worden as USC Athlete (uncredited)