Donald O'Connor as Peter Stirling

Lori Nelson as Barbara Atwood

Alice Kelley as Cynthia Daniels

Gregg Palmer as William Norton (as Palmer Lee)

William Reynolds as Wilbur Van Allen

Les Tremayne as Col. Daniels

Otto Hulett as Chadwick - Football Coach

David Janssen as Cpl. Thomas (as Dave Janssen)

James Best as Cpl. Ransom

Chill Wills as Francis (as Francis the Talking Mule)

Leonard Nimoy as Football Player