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 Jenna Dewan Lucy Lane Guest Star Chris Vance Non Guest Star Italia Ricci Siobhan Smythe Guest Star Briana Venskus Agent Vasquez Guest Star Jay Jackson News Anchor Guest Star Laura Vandervoort Indigo Guest Star Patrick O'Connell General Mathers Guest Star Kelly Chavers Girlfriend Guest Star Ruben Vernier Boyfriend Guest Star Sebastian Velmont Silo Guard 1 Guest Star Nick Jaine Guy 1 Guest Star Carly Nykanen Woman Guest Star Michael Hanson Guy 2 Guest Star Greg Berlanti Executive Producer Allison Adler Executive Producer Andrew Kreisberg Executive Producer Sarah Schechter Executive Producer Rachel Shukert Writer Anna Musky-Goldwyn Writer James DeWille Writer Dermott Downs Director