- Laird Doyleadapted by and
- Raymond L. Schrockadapted by
- Edward Ellsbergfrom the book "Pigboats" by (as Commander Edward Ellsberg)
- John Lee Mahindialogue and
- John Meehandialogue
Rest of cast listed alphabetically
- Robert Adair(uncredited)
- Gino Corrado(uncredited)
- James Donlan(uncredited)
- Maude Eburne(uncredited)
- Herbert Evans(uncredited)
- Eddie Hart(uncredited)
- Henry Kolker(uncredited)
- Babe London(uncredited)
- Frank Marlowe(uncredited)
- Bradley Page(uncredited)
- James Parrish(uncredited)
- Paul Porcasi(uncredited)
- Nina Quartero(uncredited)
- Syd Saylor(uncredited)
- William Stack(uncredited)
- Harry Strang(uncredited)
- Jack Trent(uncredited)
- Hans von Morhart(uncredited)
- Jack Conwayproducer (uncredited)
- William Axtcomposer (uncredited)
- Harold Rossoncinematographer (photographed by)
- Hal C. Kernfilm editor
- Ben Piazzacasting director (uncredited)
- Paul Wilkinscasting director (uncredited)
- John Watersassistant director (uncredited)
- Douglas Shearerrecording director
- Ralph Shugartsound mixer (uncredited)
- Leonard Murphycasting assistant (uncredited)
- Frank Rinaldicasting assistant (uncredited)
- Charles Maxwellorchestrator (uncredited)
- Morris D. Gilmoretechnical advisor (as Lt. Comdr. Morris D. Gilmore U.S.N. {RET})
Crew verified as complete
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