▁German ▁U - bo ats ▁during ▁World ▁War ▁II , ▁and ▁the ▁German ▁efforts ▁to ▁in fil tr ate ▁their ▁operations ▁with ▁sp ies ▁and ▁sab ote urs . ▁ ▁Cast ▁▁ ▁Bruce ▁Ben nett ▁as ▁Captain ▁Morgan ▁ ▁Virginia ▁Field ▁as ▁L ida ▁Adams ▁ ▁John ▁Be al ▁as ▁Carl ▁Hans en ▁ ▁Cl iff ord ▁Se vern ▁as ▁Sand y ▁Brown ▁ ▁Larry ▁Park s ▁as ▁Gregory ▁ ▁Lloyd ▁Br id ges ▁as ▁Bert ▁ ▁Victor ▁Kil ian ▁as ▁Otto ▁ ▁Hans ▁Sch umm ▁as ▁Commander ▁von ▁Smith ▁ ▁Erik ▁R olf ▁as ▁Gun ther ▁ ▁Edd ie ▁L aught on ▁as ▁Radio ▁Oper ator ▁ ▁Wilhelm ▁von ▁Br in cken ▁as ▁U - Bo at ▁Officer ▁ ▁External ▁links ▁▁▁▁ ▁Category : 1 9 4 2 ▁films ▁Category : 1 9 4 0 s ▁war ▁films ▁Category : 1 9 4 0 s ▁sp y ▁films ▁Category : American ▁war ▁films ▁Category : American ▁sp y ▁films ▁Category : American ▁films ▁Category : Col umb ia ▁Pictures ▁films ▁Category : Fil ms ▁directed ▁by ▁Lew ▁Land ers ▁Category : World ▁War ▁II ▁films ▁made ▁in ▁w art ime ▁Category : Fil ms ▁set ▁in ▁I cel and ▁Category : Se af aring ▁films ▁Category : American ▁black - and - white ▁films <0x0A> </s> ▁J el iz ▁J and ▁( , ▁also ▁Roman ized ▁as ▁J el ī z ▁J and , ▁J al az ▁J and , ▁J ale z j and , ▁and ▁Je lez j and )