The network switch caused the show's cast and crew to move from Los Angeles to Vancouver, meaning that certain cast members would not necessarily be able to follow. This included minor characters such as Lucy Lane (Jenna Dewan Tatum) and Maxwell Lord (Peter Facinelli), but also included one of season one's main characters, Cat Grant (Calista Flockhart).
The Queen of All Media, who factored heavily into the show's freshman season, was written out of the show in the first two episodes in the second season. Although much of Supergirl's ongoings still occur at CatCo Worldwide Media, Cat herself decided to step down from the company to spend time with her sons. She appointed James Olsen (Mehcad Brooks) in her place, and Kara subsequently went under the professional wing of Snapper Carr (Ian Gomez).
Many fans have wondered when exactly Cat will return to Supergirl, even in some sort of cameo. According to one of the show's executive producers, Andrew Kreisberg, seeing Cat again isn't entirely impossible.
"We're working on it." Kreisberg recently revealed. "We love Calista, she loves us, she loves the show. She has other commitments, and family, and whatnot. But we're trying to work it out."
But with that in mind, Kreisberg also told HeroicHollywood that any appearance from Cat probably won't happen in the remainder of this season.
"I wouldn't put money on seeing Cat again this season." He explained, before joking. "But if you do, keep the wager under $1."
Supergirl, and the rest of the 'Berlantiverse' shows airing on The CW, have already being renewed for the upcoming 2017-2018 season. This means that is a chance that Cat could appear in the show's upcoming third season, it's just uncertain exactly what capacity it would be.
Distributed worldwide by Warner Bros. International Television Distribution, SUPERGIRL is executive produced by Greg Berlanti (Arrow, The Flash), Ali Adler (The New Normal), Andrew Kreisberg (The Flash, Arrow) and Sarah Schechter (Blindspot, The Mysteries of Laura). Supergirl is based on the characters created by Jerry Siegel and Joe Shuster and appearing in DC Comics, by special arrangement with the Jerry Siegel Family.
"Homecoming" episode of Supergirl aired on Monday, February 27 at 8 p.m. ET/PT.