is a
Fictional Character in the
Science Fiction television series ''
Stargate SG-1 '', played by
Corin Nemec .
A native of
Kelowna ,
SG-1 first encountered the astute Jonas Quinn in the season 5 episode "
Meridian ". Soon after their cordial meeting, Jonas witnessed
Daniel Jackson 's heroic sacrifice, saving the planet by removing unstable naqahdriah from a bomb, thus exposing himself to a lethal dose of radiation. After Daniel's death, he stole
Naqahdriah from the Kelownans and took it to the
SGC , hoping it would be used in a more pacifistic fashion than in Kelowna. He became a member of SG-1 for a year and replaced Daniel Jackson as
Archaeologist and
Linguist . Originally, Colonel
Jack O'Neill argued with
General Hammond that SG-1 could still operate with only three members. However, General Hammond demanded that the flagship team be punctuated by a fourth member, to provide an alternate viewpoint, which O'Neill took as a another "sociopolitical nerd to offset SG-1’s overwhelming coolness." After several failed replacements, O'Neill allowed Jonas to join his team because he didn't want to get a
Russia n member assigned by General Hammond and Jonas had helped to save the planet ("
Redemption "). He was a quick study;
Dr. Fraiser determined that he could absorb a great amount of knowledge in a small amount of time, aided by his
Photographic Memory . Even though it took time for Jonas to truly be accepted into SG-1, he managed to earn everyone's respect, including Colonel O'Neill's. Throughout season 6, Jonas demonstrated a character very similar to Daniel, providing valuable insight to SG-1. When Daniel returned in season 7's episode "
Fallen ," Jonas decided to go back to Kelowna and became a peace negotiator for his people, after his planet had been attacked by the
Goa'uld Anubis .
He returned to the SGC once again in "
Fallout " to ask for SG-1's help to save his planet from destruction due to unstable Naqahdriah under the planet's crust--a result of a Naqahdriah bomb test.
