The Great Impostor

Ferdinand Waldo Demara Jr. / Martin Donner / Dr. Gilbert / Ben. W. Stone / Dr. Joseph Mornay / Robert Boyd Hammnd

Father Devlin

Capt. Glover - HMCS Cayuga

Warden J.B. Chandler

Pa Demara

Lt. Catherine Lacey

Abbott Donner

R.C. Brown

Ma Demara

Eulalie Chandler

Cardinal

Clifford Thompson

Barney

WAC Lieutenant

Hotchkiss

Fred Demara Jr. (as Robert Crawford)

Farmer Hauling Fertilizer

Lieutenant Commander Howard - HMCS Cayuga

Dr. Hammond

Capt. Hun Kim

Senior Officer

Defense Lieutenant

Dr. Joseph Mornay

Lt. Thornton

Sgt. Wilkerson (uncredited)

Sailor (uncredited)

State Official (uncredited)

Highway Patrol Officer (uncredited)

Reporter (uncredited)

Tirdell (uncredited)

Soldier (uncredited)

RCN Chief (uncredited)

Sheriff (uncredited)

Mr. Warren (uncredited)

Marine Major (uncredited)

Reporter (uncredited)

Seaman (uncredited)

State Department Official (uncredited)

Korean Soldier (uncredited)

Korean Officer (uncredited)

Reporter (uncredited)

RCN Commander (uncredited)

Sergeant (uncredited)

Guard (uncredited)

Highway Patrol Officer (uncredited)

Minor Role (uncredited)

Federal Prison Inmate (uncredited)

Seaman (uncredited)

Morgan (uncredited)