Colonel Makepeace commanded the SG-3 Marines, often called upon for backup and rescue missions with SG-1. Makepeace and SG-3 provided backup on the mission to the Land of Light, where he contracted the histaminolytic virus of the Touched, for which he was later cured. SG-3 also joined SG-1 on the mission to P34-353J where they first encountered the Tok'ra. On a scouting mission to P3X-254, he learned from Tok'ra operatives of the capture of SG-1 by Hathor, and he commanded the joint SG units 3, 5, 6, and 11 on the mission to rescue SG-1 from Hathor's base.

Makepeace was the most senior SG officer in the field after O'Neill, however O'Neill's undercover mission to shut down the NID off-world operation exposed Makepeace as the mole working within the SGC to illegally obtain alien technology for a rogue element of the NID. He was arrested for high crimes against the United States and its allies.

Portrayed by: Steve Makaj

Cross Reference: Hathor, Histaminolytic Virus, Lieutenant Johnson, Land of Light, Harry Maybourne, Major Newman, NID Off-World Operation, NID Rogue Operation, SG Teams, Clare Tobias, Trofsky

Episode Reference: The Broca Divide, The Tok'ra, Into the Fire, Shades of Grey