The Master KeyActionWarCrime66The Master Key66ActionWarCrimethumb_upthumb_downThe Master KeyApril 24, 1945Directed byLewis D. CollinsBefore the outbreak of WWII, Nazi sympathizers plot to undermine America.US content warning movie serial Last Updated: yesterday Request Update CastMilburn StoneAgent Tom BrantJan WileyJanet LoweDennis MooreJack RyanAddison RichardsGerhard Doenitz / Garret DonahueByron FoulgerProf. Elwood HendersonMaris WrixonDorothy NewtonSarah PaddenAggieGeorge LynnHermanRussell HicksPolice Chief Michael J. O'BrienRoland VarnoArnold HoffmanLash LaRueMigsyJerry ShaneDanNeyle MorrowSpikeJohn EldredgeWalter Stark Image Gallery