Melissa Benoist Kara Danvers, Supergirl Actor Chyler Leigh Alex Danvers Actor Mehcad Brooks James Olsen Actor David Harewood Hank Henshaw Actor Jeremy Jordan Winslow "Winn" Schott Actor Floriana Lima Maggie Sawyer Actor Chris Wood Mon-El Actor Lynda Carter President Olivia Marsdin Guest Star Sharon Leal M'gann M'orzz Guest Star Katie McGrath Lena Luthor Guest Star Nadine Crocker Scorcher Guest Star Ian Gomez Snapper Carr Guest Star Greg Berlanti Executive Producer Allison Adler Executive Producer Andrew Kreisberg Executive Producer Sarah Schechter Executive Producer Rachel Talalay Director Jessica Queller Writer Derek Simon Writer