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)