 Keller later informs Rodney McKay and that Weir can be saved by using the now-inactive Replicator nanites in her bloodstream.Towards the end of the fifth season, she starts a romantic relationship with McKay; the status of their relationship at the end of the series is never revealed.Several characters who may be better known for their role in "Stargate SG-1" have made appearances in "Atlantis".