Bill Marchant

as Mitchell

as Leo

as Bob

as Elliott

as Gerry (1 episode)

as Lance Beekman

as Agent

as Professor

as Muto Crow's Nest Tech #2

as Senior Council Member (1 episode), as Senior Councilman (1 episode)

Writer

as Propriétaire du chalet

as Arthur Abbot

as Mitch Lafoy (1 episode)

as Tom

as Park Ranger #2

as Professor Stein (1 episode)

as Michael Smith

as Deputy Frank (1 episode)

as Shepard, Writer, Director

as Harmon Sloan (1 episode)

as Lecturer

as Scotty the Engineer (1 episode)

as Adrian Conrad (2 episodes), as Adrian Conrad / Goa'uld (1 episode)