Nicksay's television credits include guest star appearances on The Mentalist, The Guardian, 8 Simple Rules, and Judging Amy. She has also appeared in the feature films The Negotiator, The Adventures of Rocky and Bullwinkle, and Up Close & Personal, and in the 1995 television movie The Christmas Box.
She was seen in a series of UPS commercials, featuring as an operations manager in a company called Gunderman Group.
Nicksay starred as May in the 2016 production of See Rock City, and the 2015 production of Last Train To Nibroc at the Rubicon Theatre, to rave reviews. The third play in the trilogy by Arlene Hutton, Gulf View Drive, is scheduled for the Rubicon's 2017 season.
Nicksay graduated from the University of St Andrews, Scotland, with an MA degree in Latin and Ancient Greek.