| Cast overview, first billed only: | |||
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Lee Powell | ... |
Lt. Tom Grayson
(archive footage)
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| Bruce Bennett | ... |
Lt. Frank Corby
(archive footage) (as Herman Brix)
|
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Eleanor Stewart | ... |
Janet Warfield
(archive footage)
|
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Hugh Sothern | ... |
Prof. Warfield
(archive footage)
|
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|
Montagu Love | ... |
Gen. White
(archive footage)
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Perry Ivins | ... |
Crenshaw
(archive footage)
|
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|
Forrest Taylor | ... |
Benson
(archive footage)
|
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|
John Picorri | ... |
The Lightning's Hunchbacked Assistant
(archive footage)
|
|
|
Sam Flint | ... |
Col. Grayson
(archive footage)
|
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|
Frank Baker | ... |
Marine Prosecutor-General
(archive footage)
|
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|
Harry Strang | ... |
Marine Sgt. Bennett
(archive footage)
|
|
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John Davidson | ... |
Lin Wing
(archive footage)
|
|
|
Sherry Hall | ... |
Mr. Brown
(archive footage)
|
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|
Howard Chase | ... |
Marine Commandant of Gehorda Island
(archive footage)
|
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|
Monte Montague | ... |
Thug Spying at Warfield House, later Phoney Chauffeur
(archive footage)
|
Feature version of the 1938 serial of the same name.