I Love a Mystery

Jim Bannon

Jack Packard

Nina Foch

Ellen Monk

George Macready

Jefferson Monk

Barton Yarborough

Doc Long

Carole Mathews

Jean Anderson

Lester Matthews

Justin Reeves / Mr. G

Ernie Adams

Gimpy (Uncredited)

Gary Bruce

Intern (Uncredited)

Joseph Crehan

Police Captain Quinn (Uncredited)

Franklyn Farnum

Reporter (Uncredited)

Gregory Gaye

Dr. Han (Uncredited)

Fred Graff

Morgan (Uncredited)