Dr. Carson Beckett is a fictional Scottish character in the Canadian-American science fiction television series Stargate Atlantis, a spin-off series of Stargate SG-1. He is portrayed by Scottish-born Canadian actor Paul McGillion, who previously played Dr. Ernest Littlefield in the first season of SG-1. Created by Robert C. Cooper and Brad Wright, the character's Scottish nationality was only decided after McGillion's audition.Dr. Beckett's character arc begins in the pilot episode "Rising".