as Sawyer Scott
as Zach Emmett
as Mr. Jaffe
as Pete
as Bill Strand
as Judge
as Frank Scott(2 eps)
as Walter Pierce
as Dale Wyman
as Professor
as Martin Brooks
as Dyer
as Victor Petronovich
as Quidd
as Dennis Slayne
as Maracek
as Detective Baker
as Dallas Macon(1 ep)
as Jack
as Henry Quinn
as Julian
as Simon Fletcher(1 ep)
as Charles Marlow(10 eps)
as Douglas Weiss
as Michael Black(1 ep)
as Martin Halford(1 ep)
as Keith Taylor
as Phil Davis
as Count Krelski
as Mr. Ross
as Dick Baker
as Sullivan
as Barry Lewis(1 ep)
as Frank Jobs
as Isaac Brock(4 eps)
as Ian Farve
as Ian Farve(22 eps)
as The Voice
as Paul Klondike
as Todd Stanfford
as Beta Ray Bill (voice)(1 ep)
as Dennis
as Marcus Hayworth
as Sir Isaac Newton
as John Gleeson
as John Taylor(1 ep)
as Anton Calvin(1 ep)
as Paul(1 ep)
as Hal
as Dan Watson(96 eps)