Wikipedia
Teal'c is a fictional character in the military science fiction television series Stargate SG-1. Played by Christopher Judge, Teal'c is a Jaffa warrior from the planet Chulak. As a Jaffa, Teal'c is a genetically modified human with an abdominal pouch that serves as an incubator for a larval Goa'uld. The larval symbiote grants enhanced strength, health, healing, and longevity; Teal'c is around 100 years old during the show's run and ages an additional 50 years in the final SG-1 episode. Teal'c's most notable feature is a golden tattoo found on his forehead, a sign that he once served the System Lord Apophis as First Prime, the most senior Jaffa rank.
Teal'c is introduced in the pilot episode of Stargate SG-1, " Children of the Gods". The character appears in all episodes of SG-1 except season 8's " Prometheus Unbound", making him the character with the most episode appearances. Teal'c also appears in the direct-to-DVD films Stargate: The Ark of Truth and Stargate: Continuum, as well as the Stargate Atlantis season 4 episodes " Reunion" and " Midway". In 2002, Christopher Judge was nominated for a Saturn Award in the category "Best Supporting Actor in a Television Series".