Jim Bannon
Jack Packard
Acting
Anita Louise
Janet Mitchell
Acting
Michael Duane
Rex Kennedy
Acting
Barton Yarborough
Doc Long
Acting
Paul E. Burns
Leon Hartman
Acting
Thomas E. Jackson
Det. Capt. Quinn
Acting
Mona Barrie
Louise Mitchell
Acting
Frank Wilcox
Prof. Arthur Logan
Acting
Richard Hale
Curator Raymond Halliday
Acting
Ludwig Donath
Dr. Karger
Acting
Mary Newton
Nurse
Acting
Edward Earle
E. R. Willard
Acting
Fred Godoy
Senor Mendoza
Acting
John Elliott
John, butler
Acting
Frank Mayo
Quentin Mitchell
Acting
Frank Martin
Introductory Narrator (voice)
Directing
Coulter Irwin
Frank, Willard's aide
Acting
Bud Averill
Closing-Time Museum Guard
Acting
Harry Strang
Brophy, museum watchman
Acting