Lee Majors Col. Steve Austin Actor Richard Anderson Oscar Goldman Actor Alan Oppenheimer Dr. Rudy Wells Actor Don Porter Dr. Stanley Bacon Guest Star Henry Jones Dr. Dolenz Guest Star Elizabeth Ashley Dr. Erica Bergner Actor Simon Scott Dr. Samuel Abbott Guest Star Arlene Martel Violette Guest Star Britt Ekland Katrina Volana Actor Terry Carter Mel Bristo Actor Tom Reese Joe Alabam Guest Star John Vernon Julian Peck Actor Jules Bergman Guest Star Earl Holliman Harry Donner.David McCallum:Alexi Kaslov Actor Luciana Paluzzi Contessa DeRojas Actor Susan Powell Sister Terese Guest Star Quinn K. Redeker Capcom Guest Star Leif Erickson William Henry Cameron Actor Bill Conklin Smitty Guest Star Joe Kapp Frank Guest Star Harve Bennett Executive Producer Glen A. Larson Executive Producer, Writer Leslie H. Martinson Director Sam Strangis Producer Michael Gleason Producer Larry Alexander Writer Howard Rodman Writer Donald R. Boyle Producer Russ Mayberry Director Richard Irving Director Elroy Schwartz Writer Del Reisman Writer Sy Salkowitz Writer Larry Brody Writer Jerry London Director Reza Badiyi Director Lionel E. Siegel Writer Jerry Jameson Director Jeannot Szwarc Director