Agent Dexter (X-9)

Shara Graustark

Baron Michael Karsten

Blackstone

Maroni

Pidge

Chief FBI Agent Wheeler (as Larry Blake)

FBI Agent Tommy Dawson (C-5)

Henchman Packard

'Jolly Roger' Ticket Barker [Chs. 1, 4, 7-9]

Rosel [Chs. 2, 6-7, 12]