Cast
Jim Bannon
Jack Packard
Richard Hale
Curator Raymond Halliday
Edward Earle
E. R. Willard
Frank Mayo
Quentin Mitchell
Harry Strang
Brophy, museum watchman
Anita Louise
Janet Mitchell
Michael Duane
Rex Kennedy
Barton Yarborough
Doc Long
Mona Barrie
Louise Mitchell
Frank Wilcox
Prof. Arthur Logan
Ludwig Donath
Dr. Karger
Thomas E. Jackson
Det. Capt. Quinn
Coulter Irwin
Frank, Willard's aide
Paul E. Burns
Leon Hartman
Mary Newton
Nurse
John Elliott
John, butler