|Played By:||Dean Marshall|
Sergeant Bates was one of those fortunate enough to go along with the Atlantis Expedition. He was given the responsibility of Atlantis's security by Dr. Elizabeth Weir. During his first mission through the gate, he was captured by the Wraith and later rescued by John Sheppard.
At first Bates was highly suspicious of the Athosians, and the suspicion paid off when Rodney McKay discovered a homing beacon in Teyla's necklace. During his time on the base, he has been in charge of guarding the Wraith prisoners and maintaining tight security on Atlantis.