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 Carl Lumbly Myr'nn Guest Star Betty Buckley Patricia Arias Guest Star Anjali Jay Selena Guest Star Emma Tremblay Ruby Arias Guest Star Greg Berlanti Executive Producer Allison Adler Executive Producer Andrew Kreisberg Executive Producer Sarah Schechter Executive Producer Gabriel Llanas Writer Anna Musky-Goldwyn Writer Chad Lowe Director