Editing Jonas Quinn (section)

=== Character arc ===
Jonas Quinn is introduced in the season 5 episode "[[Meridian (Stargate SG-1)|Meridian]]" as a scientist of the human nation of Kelowna on Langara, a planet with an industrial level comparable to Earth of the 1940s, and that is also locked in a cold war with two rival states.<ref>{{Cite journal |last=Eramo |first=Steven  | title=Episode Fallout |journal=[[TV Zone]] |issue=Special 55 |pages=26 |date=February 2004}}</ref> He is an exceptionally quick learner, which becomes useful in memorizing SG mission reports and earth culture. The Kelownans are experimenting with naqahdriah (an unstable but extremely powerful native element related to naqahdah) to build a bomb against their two rival nations, Terrania and the Andari Federation. Jonas is present when SG-1 team member [[Daniel Jackson (Stargate)|Daniel Jackson]] gets radiation-poisoned with naqahdriah in an attempt to prevent a catastrophe in Kelowna, but when the Kelownan leaders respond with indifference to Daniel's imminent death and glee with regards to the destructive power of the naqahdriah, Jonas steals a small amount of naqahdriah and offers it to Earth for more peaceful uses.<ref>{{cite episode |title=Meridian |episode-link=Meridian (Stargate SG-1) |series=Stargate SG-1 |series-link=Stargate SG-1 |credits=[[Will Waring]] (director); [[Robert C. Cooper]] (writer) |network=[[Showtime (TV network)|Showtime]] |season=5 |number=21}}</ref> Still wracked by guilt in the season&nbsp;6 premiere "[[Redemption (Stargate SG-1)|Redemption]]" over his hesitation to step in,<ref name=tvzones46_66 /> Jonas helps Major [[Samantha Carter]] find a solution to save Earth from an attack by the [[Goa'uld]] [[Anubis (Stargate)|Anubis]]. Although Colonel [[Jack O'Neill]] is reluctant to add a new fourth member to SG-1, he allows Jonas to join the team, partly to prevent a Russian from being assigned.<ref>{{cite episode |title=Redemption |episode-link=Redemption (Stargate SG-1) |series=Stargate SG-1 |series-link=Stargate SG-1 |credits=[[Martin Wood (director)|Martin Wood]] (director); [[Robert C. Cooper]] (writer) |network=[[SCI FI]] |season=6 |number=1 & 2}}</ref>

After several missions with SG-1, Jonas is confronted with his past in "[[Shadow Play (Stargate SG-1)|Shadow Play]]" and learns more of the effects of naqahdriah on people.<ref>{{cite episode |title=Shadow Play |episode-link=Shadow Play (Stargate SG-1) |series=Stargate SG-1 |series-link=Stargate SG-1 |credits=[[Peter DeLuise]] (director); [[Joseph Mallozzi]] & [[Paul Mullie]] (writers) |network=[[SCI FI]] |season=6 |number=7}}</ref> In "[[Metamorphosis (Stargate SG-1)|Metamorphosis]]", the Goa'uld [[Nirrti (Stargate)|Nirrti]] learns via an [[Ancient (Stargate)|Ancient]] DNA Resequencer that Jonas is different from other humans, but she is killed before this is further investigated.<ref>{{cite episode |title=Metamorphosis |episode-link=Metamorphosis (Stargate SG-1) |series=Stargate SG-1 |series-link=Stargate SG-1 |credits=[[Peter DeLuise]] (director); [[Jacqueline Samuda]] and [[James Tichenor]] (writers) |network=[[SCI FI]] |season=6 |number=15}}</ref> In "[[Prophecy (Stargate SG-1)|Prophecy]]", Nirrti's experiments cause clairvoyant visions in Jonas, and the doctors remove a potentially lethal tumor from his brain.<ref>{{cite episode |title=Prophecy |episode-link=Prophecy (Stargate SG-1) |series=Stargate SG-1 |series-link=Stargate SG-1 |credits=[[Will Waring]] (director); [[Joseph Mallozzi]] & [[Paul Mullie]] (writers) |network=[[SCI FI]] |season=6 |number=21}}</ref> After SG-1 finds the [[ascension (Stargate)|de-ascended]] Daniel on another planet in the season 7 premiere "[[Fallen (Stargate SG-1)|Fallen]]"/"[[Homecoming (Stargate SG-1)|Homecoming]]", Jonas and Daniel join forces and succeed in driving Anubis away from Kelowna. The three Langaran nations agree to meet for peace talks for the greater good of the planet, and Jonas decides to become a peace negotiator for his people. While Jonas returns to his planet, Daniel rejoins SG-1.<ref>{{cite episode |title=Fallen |episode-link=Fallen (Stargate SG-1) |series=Stargate SG-1 |series-link=Stargate SG-1 |credits=[[Martin Wood (director)|Martin Wood]] (director); [[Robert C. Cooper]] (writer) |network=[[SCI FI]] |season=7 |number=1}}</ref><ref>{{cite episode |title=Homecoming |episode-link=Homecoming (Stargate SG-1) |series=Stargate SG-1 |series-link=Stargate SG-1 |credits=[[Martin Wood (director)|Martin Wood]] (director); [[Joseph Mallozzi]] & [[Paul Mullie]] (writers) |network=[[SCI FI]] |season=7 |number=2}}</ref> Jonas last appears in season 7's "[[Fallout (Stargate SG-1)|Fallout]]" to ask Earth for help saving his homeworld from the destructive powers of naqahdriah in the planet's core.<ref>{{cite episode |title=Fallout |episode-link=Fallout (Stargate SG-1) |series=Stargate SG-1 |series-link=Stargate SG-1 |credits=[[Martin Wood (director)|Martin Wood]] (director); [[Corin Nemec]], [[Joseph Mallozzi]] & [[Paul Mullie]] (writers) |network=[[SCI FI]] |season=7 |number=14}}</ref> Season 10's "[[Counterstrike (Stargate SG-1)|Counterstrike]]" mentions that the [[Ori (Stargate)|Ori]] conquered Langara, Jonas's homeworld.<ref name=Counterstrike /> Langara's story arc is resumed in ''[[Stargate Universe]]''{{'}}s "Seizure", where Earth eventually agrees to protect Langara from the [[Lucian Alliance]], while the Langarans remove the Stargate from their facility.<ref>{{cite episode |title=Seizure |episode-link=Stargate Universe (season 2) |series=Stargate Universe |series-link=Stargate Universe |credits=Helen Shaver (director); Remi Aubuchon (writer) |network=[[Syfy]] |season=2 |number=15}}</ref>