Calista Flockhart will continue as Cat Grant on Supergirl, but not as a series regular.
For Supergirl season 2, a decision was made to move production from Los Angeles to Vancouver to cut costs of filming. Greg Berlanti’s other CW superhero series also film in the area. It was up in the air whether Calista Flockhart would return to the series as she continues to live in Los Angeles with her family and is unwilling to relocate. An agreement was made in which Flockhart will return for Season 2 in a recurring capacity. The studio will fly her to Vancouver every few weeks as scheduling permits.
“Supergirl wouldn’t be Supergirl without the amazing Calista Flockhart as Cat Grant. We are so excited Calista has agreed to continue on the show when she can. We and the audience love to see her on screen.” –EP Andrew Kreisberg
Supergirl season 2 premieres Monday, October 10th at 8/7c on The CW.