Donald P. Bellisario Creator Barry Van Dyke St. John Hawke Actor Michele Scarabelli Jo Santini Actor Geraint Wyn Davies Maj. Mike Rivers Actor Anthony Sherwood Jason Lock Actor Michael Constantine Dr. Vladimir Bronski Guest Star Jan-Michael Vincent Stringfellow Hawke Guest Star Grainger Hines Colonel Curtis Guest Star Ann-Marie MacDonald Anna LeBlanc Guest Star Sonja Smits Alexandria Rostov Guest Star Walter Marsh Guest Star Gordon Tootoosis Charlie Rising Moon Guest Star William S. Taylor Lieutenant Walters Guest Star Peter Nicolas Uri Kolcheski Guest Star Jerry Wasserman Ackroyd Guest Star Lawrence Dane Commander Kirov Guest Star Lindsay Bourne Officer Guest Star Jane Mortifee Guest Star Garwin Sanford Guest Star James Kidnie Guest Star William B. Davis Guest Star Arthur Annecharico Executive Producer Michael MacMillan Producer Jonathan Goodwill Producer Steven Ecclesine Producer Alan Simmonds Director Judy Burns Producer Ken Jubenvill Director Michael Mercer Writer Patrick Corbett Director Bruce Pittman Director Jana Veverka Producer, Writer Gwin Tulpa Writer J. Barry Herron Director Sydney Burrows Writer Brad Turner Director Chris Haddock Writer Rick Drew Writer Jordon Nicht Writer