Airman stationed at Stargate Command during General Jack O'Neill's tenure. Teal'c reported that he missed a scheduled appointment in the infirmary. During that time, his body was taken over by the non-corporeal form of Anubis, who attempted to leave Earth by threatening technician Connor with a gun. O'Neill knocked him unconscious with a zat'ni'katel.
PLAYED BY -
FIRST APPEARED - Lockdown
Lockdown - McCaffrey is tracked to the control room, where he is disabled by General O'Neill.