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 Chris Wood Mon-El Actor Katie McGrath Lena Luthor Actor Odette Annable Samantha Arias Actor Floriana Lima Maggie Sawyer Guest Star Yael Grobglas Gayle Marsh, Psi Guest Star Sharon Leal M'gann M'orzz Guest Star Erica Durance Alura Zor-El Guest Star Greg Berlanti Executive Producer Allison Adler Executive Producer Andrew Kreisberg Executive Producer Sarah Schechter Executive Producer David McWhirter Director Gabriel Llanas Writer Anna Musky-Goldwyn Writer