From The Stargate Omnipedia
Special operations airman at Stargate Command. She performed a variety of duties at the base during its first five years of operation.
PLAYED BY - Tracy Westerholm
FIRST APPEARED - Hathor
Hathor - Westerholm escapes captivity with Captain Carter and Dr. Fraiser, arming herself to help retake control of the base from Hathor.
Enigma - Westerholm reports the escape of the Tollan refugees to General Hammond and Colonel Maybourne, stating that they used their phase-shifting technology to walk right through her.
Point of View - Westerholm is assigned as watch over Samantha Carter from a parallel reality.