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