Lindsay Carlisle is a nurse working at the Harmony Falls Psychiatric Facility.
In 1958, Lindsay was present at the mental institution when Sara Lance, who posed as a nurse, helped rid Lindsay of a nagging doctor who was hitting on her. The two formed a bond and Sara quickly discerned that Lindsay was a lesbian as it was obvious she wasn't into men. Lindsay kissed Sara, freaking out the latter as it had been her first kiss since being resurrected. Sara later saved Lindsay from the one of Vandal Savage's experimental hawk creatures that was about to attack her in the asylum. Before departing with the team, Sara kissed Lindsey goodbye and hoped that she would maybe be back one day.