|Out of universe information|
Lindsey Novak is an engineer who turned down an offer to join the original expedition to Atlantis. She has an acute case of the hiccups when she's frightened, an annoyance that almost destroyed her PhD presentation.
Lindsey was aboard the Prometheus when it attempted to make a voyage to the Pegasus galaxy to assess the Atlantis expedition's situation (No one had heard from them since their departure). She was one of the officers offloaded to a Goa'uld Al'kesh by Vala Mal Doran who intended to sell the Prometheus to a fellow arms dealer, Tenat. She and MSgt. Walter Harriman repaired the Al'kesh and followed Prometheus. Eventually, Dr. Daniel Jackson was successful in securing the ship, turning it around to pick up Novak and the others who were stranded. Prometheus did not make it to Atlantis. (SG1: "Prometheus Unbound")
Almost half a year later when the Earth ship Daedalus was completed, Novak served as engineer alongside the Asgard Hermiod. She occasionally frustrated the alien concerning matters relating to weapons deployment using Asgard transporters. But at least she had gotten over her hiccups. (SGA: "The Siege, Part 3")
When The Trust planted a bomb in Atlantis, Novak received the message from Stargate Command to relay to Atlantis. Later, she was interrogated by Dr. Elizabeth Weir and mentioned that Dr. Peter Kavanagh was always poking around in the Daedalus computers. (SGA: "Critical Mass")