Kadro (11)
Scott KolkAgent Dexter (X-9)
Jean RogersShara Graustark
Monte BlueBaron Michael Karsten
Henry BrandonBlackstone
Lon Chaney Jr.Maroni
David OliverPidge
Larry J. BlakeChief FBI Agent Wheeler (as Larry Blake)
Henry HunterFBI Agent Tommy Dawson (C-5)George ShelleyHenchman Packard
Si Jenks'Jolly Roger' Ticket Barker [Chs. 1, 4, 7-9]
Lynn GilbertRosel [Chs. 2, 6-7, 12]