Staite attended the Vancouver Film School and worked at the Vancouver Youth Theatre. Staite played the role of head medical doctor Jennifer Keller in the Stargate SG-1 spinoff Stargate Atlantis, making her the third actor from the Firefly series to move on to appear in a Stargate series (the first being Adam Baldwin, who had a brief role as a colonel in the Stargate SG-1 Season Seven episode “Heroes”, and the second being Morena Baccarin, who played Adria, the main villain in the tenth season of SG-1), and the second to take a recurring role. Before taking on the role as Dr. Keller she previously played the Wraith child Ellia in the Stargate Atlantis episode “Instinct”.
