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 Italia Ricci Siobhan Smythe Guest Star Briana Venskus Agent Vasquez Guest Star Tawny Cypress Senator Miranda Crane Guest Star Aisha Tyler Aisha Tyler Guest Star Julie Chen Julie Chen Guest Star Sara Gilbert Sara Gilbert Guest Star Sheryl Underwood Sheryl Underwood Guest Star Kitana Turnbull Costumed Girl Guest Star KylieRae Condon Mean Girl Guest Star Dan Warner Fire Chief Guest Star Greg Berlanti Executive Producer Allison Adler Executive Producer Andrew Kreisberg Executive Producer Sarah Schechter Executive Producer Robert Rovner Writer Jessica Queller Writer Larry Teng Director