Buster Keaton

Ronald, The Boy

Anne Cornwall

Mary Haynes, The Girl

Flora Bramley

Mary's friend

Harold Goodwin

Jeff Brown, A rival

Snitz Edwards

The Dean

Carl Harbaugh

Crew Coach

Sam Crawford

Baseball Coach

Florence Turner

A Mother

Lee Barnes

USC Athlete (uncredited)

Robert Boling

USC Athlete (uncredited)

Charley Borah

USC Athlete (uncredited)

Leighton Dye

USC Athlete (uncredited)

Paul Goldsmith

USC Athlete (uncredited)

Kenneth Grumbles

USC Athlete (uncredited)

Charlie Hall

Coxswain (uncredited)

Bud Houser

USC Athlete (uncredited)

Morton Kaer

USC Athlete (uncredited)

Eric Mack

USC Athlete (uncredited)

James T. Mack

High School Principal (uncredited)

Buddy Mason

Jeff's Friend (uncredited)