Chuck

Chuck is a Canadian member of the Atlantis expedition, holding the rank of Sergeant. He was part of the original expedition team that departed from Earth in 2004, and has since served as a technician in Atlantis' control room.

Behind the scenes
Though his character has appeared in dozens of episodes since the first season of Stargate Atlantis and in one episode of Stargate SG-1, Chuck's full name has yet to be identified on screen; the episode credits list him only as "Technician." However, Weir addressed him as "Sergeant" in "Trinity" and by name in "First Strike". In Remnants Woolsey calls him Chet but he confirms his name is Chuck by correcting him.