Calista Flockhart ... Cat Grant
Melissa Benoist ... Kara Zor-El/Kara Danvers/Supergirl
Mehcad Brooks ... James Olsen
Chyler Leigh ... Alex Danvers
Jeremy Jordan ... Winslow "Winn" Schott Jr.
David Harewood ... Hank Henshaw/J'onn J'onzz/Martian Manhunter