Gayne Whitman

Narrator (voice) (archive sound) (uncredited)

Self (archive footage)

Voice of the Masked Man

Big Ed Wallace (uncredited)

Dr. Kennedy

Purser (uncredited)

District Attorney

Lawyer Grummet

Mr. Eskow

Mr. Lowell

Dr. Gelster

Judas Iscariot

Doctor (uncredited)

Tim Matthews

Self (Voice)

Self (Voice)

Narrator (voice)

Narrator

Narrator

Narrator (voice)

The Geologist (voice)

Narrator

Radio Program Announcer (uncredited)

Reporter (uncredited)

Announcer

Officer

Maitre d'hotel (uncredited)

District Attorney John W. Rogers

Narrator (voice) (uncredited)