Mark Sheppard

as Senior Investigator Gary

Third Assistant Director

as Self

as Ackley

as Young Captain Nemo

as Dr. Charles LeBlanc

as Malcolm

as Leitch

as Peter

as Mitchell Parks

as Chomsky

as Yuri

as Ian Fields

as M. J.

as Fang

as Christopher 'C.J.' Yates

as California

as Nigel Bowles

as Paddy Armstrong

as The Ringmaster

as Astropath / Ultramarines Orbital Command (voice) • 1 eps

as Hagan • 5 eps

as Willoughby Kipling • 12 eps

as Fake Dr. Zito • 1 eps

as Curtis Hagen • 6 eps

as Benedict Valda • 6 eps

as Tanaka • 3 eps

as Jim Sterling • 7 eps

as Manservant Neville • 2 eps

as Russell • 1 eps

as Anthony Anthros • 2 eps

as Ring Director • 2 eps

as Tom Prescott • 1 eps

as Rupert Stone • 1 eps

as Crowley • 102 eps

as Canton Delaware • 2 eps

as Charles Walker • 3 eps

as Romo Lampkin • 7 eps

as Young Mr. Pain (uncredited) • 1 eps

as George Beckwahr • 1 eps

as Hartman • 1 eps

as Johnny Patani • 1 eps

as Badger • 2 eps

as Ronan Dennehy • 1 eps