Major Charles Kawalsky - Jay Acovone
Colonel Makepeace (SG-3) - Steve Makaj
Lt. Graham Simmons - Tobias Mehler
Technician Alberts - Bill Nikolai
Harriman - Gary Jones
Ferretti - Brent Stait
Major Samuels - Robert Wisden
Lieutenant Connor - Roger C. Cross
Lieutenant Baker - Adrian Hughes
Captain Jonas Hansen - William Russ
Secretary of Defense David Swift - David Mulligan (I)
Ernest Littlefield - Keene Curtis
Professor Langford - Duncan Fraser
Katherine - Elizabeth Hoffman
Senator Kinsey - Ronny Cox
General Jacob Carter - Carmen Argenziano also see Tok'Ra
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