Melissa Benoist Kara Danvers, Supergirl Actor Calista Flockhart Cat Grant Actor Chyler Leigh Alex Danvers Actor Mehcad Brooks James Olsen Actor David Harewood Hank Henshaw Actor Jeremy Jordan Winslow "Winn" Schott Actor Laura Benanti Alura Zor-El , Astra Guest Star Jenna Dewan Lucy Lane Guest Star Peter Facinelli Maxwell Lord Guest Star Glenn Morshower General Sam Lane Guest Star Italia Ricci Siobhan Smythe Guest Star Carly Nykanen Editor Guest Star Helen Slater Eliza Danvers Guest Star Christopher Showerman Tor Guest Star Malina Pauli Weissman Young Kara Zor-El Guest Star Chris Vance Non Guest Star Jay Jackson Male Newscaster Guest Star Robert Gant Zor-El Guest Star Nick Jaine Another Staffer Guest Star Briana Venskus Agent Vasquez Guest Star Greg Berlanti Executive Producer, Writer Allison Adler Executive Producer, Writer Andrew Kreisberg Executive Producer, Writer Sarah Schechter Executive Producer Yahlin Chang Writer Michael Grassi Writer Roberto Aguirre-Sacasa Writer Robert Rovner Writer Caitlin Parrish Writer Rachel Shukert Writer Ted Sullivan Writer Derek Simon Writer Anna Musky-Goldwyn Writer Larry Teng Director Dermott Downs Director James DeWille Writer Glen Winter Director