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 Peter Facinelli Maxwell Lord Guest Star Luke Macfarlane Agent Donovan Guest Star Charles Halford Jemm Guest Star Ashton Bingham Senior Tech Guest Star David Lim Agent Tsung Guest Star Ayo Sorrells Agent Reynolds Guest Star Stephanie Arcila Woman Guest Star Zuhair Haddad Store Owner Guest Star Casey Strand Reporter Guest Star Bryan Lugo Looter Guest Star Ryan Babcock Looter Guest Star Greg Berlanti Executive Producer Allison Adler Executive Producer Andrew Kreisberg Executive Producer Sarah Schechter Executive Producer Yahlin Chang Writer Ted Sullivan Writer Larry Teng Director