Buster Keaton

Elmer J. Stuyvesant, Jr.

Sally Eilers

Mary

Cliff Edwards

Nescopeck

Edward Brophy

Sgt. Brophy

Victor Potel

Svendenburg

Arnold Korff

Gustave

Frank Mayo

Capt. Scott

Pitzy Katz

Abie Cohn

William Steele

Lt. Randolph

Bobby Barber

Doughboy (uncredited)

Sidney Bracey

Recruiter (uncredited)

John Carroll

Doughboy in Elmer's Squad (uncredited)

Jack Cheatham

Guard House Sentry (uncredited)

Jimmie Dundee

Riveter (uncredited)

Joseph W. Girard

General Hull (uncredited)

Edward Sedgwick