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 Peter Facinelli Maxwell Lord Guest Star Laura Benanti Alura Zor-El , Astra Guest Star Chris Vance Non Guest Star Jenna Dewan Lucy Lane Guest Star Briana Venskus Agent Vasquez Guest Star Italia Ricci Siobhan Smythe Guest Star Jeff Branson Carl Draper , Master Jailer Guest Star Todd Sherry Professor Alphonse Luzano Guest Star Blake Berris Gabriel Phillips Guest Star Ray Campbell Jim Warren Guest Star Greg Berlanti Executive Producer Allison Adler Executive Producer Andrew Kreisberg Executive Producer Sarah Schechter Executive Producer Michael Grassi Writer Yahlin Chang Writer Caitlin Parrish Writer Lexi Alexander Director