Bud Abbott as Slicker Smith

Lou Costello as Herbie Brown

Lee Bowman as Randolph Parker III

Jane Frazee as Judy Gray

Alan Curtis as Bob Martin

Nat Pendleton as Sgt. Michael Collins

Laverne Andrews as Laverne Andrews

Maxene Andrews as Maxene Andrews

Patty Andrews as Patty Andrews

Samuel S. Hinds as Maj. Gen. Emerson

Harry Strang as Sgt. Callahan

Nella Walker as Mrs. Parker II

Leonard Elliott as Henry

Shemp Howard as Chef

M.J. Frankovich as Announcer

Dora Clement as Miss Durling - Camp Hostess

Jean Brooks as Camp Hostess

Janet Warren as Camp Hostess

Kay Leslie as Camp Hostess

Nina Orla as Camp Hostess

Dorothy Darrell as Camp Hostess

Al Billings as Tough Fighter - Maguire's Replacement (uncredited)

Stanley Blystone as Recruiting Sergeant (uncredited)

John Butler as Supply Sergeant (uncredited)

John Cason as Fighter (uncredited)

Charles Coleman as Edmunds (uncredited)

Tom Coleman as Army Officer (uncredited)

Dean Collins as Dancer (uncredited)

Frank Cook as Harmonica and Guitar Player (uncredited)

Pat Costello as Recruit Who Slugs Herbie (uncredited)

Frankie Dolan as Fighter (uncredited)

Kenne Duncan as Sergeant on Sidewalk with Sgt. Collins (uncredited)

Franklyn Farnum as Officer (uncredited)

James Flavin as Recruiting Sergeant (uncredited)

Lloyd Ford as Fighter (uncredited)

Harold Goodwin as Sergeant Leading Recruits Through Train Station (uncredited)

William Gould as Recruiting Major (uncredited)

Frankie Grandetta as Pvt. Maguire - Small Boxer (uncredited)

Eddie Hall as Craps Player on Train (uncredited)

William Hall as Corporal (uncredited)

Buddy Harris as Train Porter (uncredited)

Jerome Harte as Corporal (uncredited)

George Hoagland as Fight Spectator (uncredited)

J. Anthony Hughes as Capt. Williams (uncredited)

Selmer Jackson as Capt. Johnson (uncredited)

Charles King Jr. as Cadet (uncredited)

Jimmie Lucas as Corporal (uncredited)

George Magrill as Patrol Car Driver (uncredited)

Jewel McGowan as Dancer (uncredited)

Bud Mercer as Cadet (uncredited)

Lyle Moraine as Lt. Poole (uncredited)

Will Morgan as Lieutenant (uncredited)

Jack Mulhall as Medical Examiner (uncredited)

Nell O'Day as Camp Hostess (uncredited)

Frank Penny as Sgt. Marks (uncredited)

Jack Perrin as Conductor (uncredited)

Don Raye as Dick Burnette (uncredited)

Tom Reed as Lieutenant (uncredited)

Bob Reeves as Conductor (uncredited)

Franklin D. Roosevelt as President Roosevelt (archive footage) (uncredited)

Stanley Smith as Corporal (uncredited)

Henry L. Stimson as Secretary of State (archive footage) (uncredited)

Tom Tyler as Boxing Match Ring Announcer (uncredited)

Frankie Van as Second at Boxing Match (uncredited)

Robert Wayne as Lieutenant (uncredited)

Douglas Wood as Randolph Parker II (uncredited)

Carleton Young as Supply Sergeant (uncredited)

Hugh Prince as Henry (uncredited)