Plot: Kara investigates a secretive new group whose leader, Thomas Coville, has a mysterious connection to Supergirl. Meanwhile, Samantha feels like she's letting Ruby down, and J'onn confesses an old secret
Cast
Melissa BenoistKara Danvers / Supergirl / Kara Zor-ElMelissa Benoist was 29 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Tue, Oct 04 1988
Chyler LeighAlex Danvers / SentinelChyler Leigh was 35 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Sat, Apr 10 1982
David HarewoodJ'onn J'onzz / Martian ManhunterDavid Harewood was 51 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Wed, Dec 08 1965
Katie McGrathLena LuthorKatie McGrath was 34 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Mon, Jan 03 1983
Odette AnnableSamantha Arias / ReignOdette Annable was 32 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Fri, May 10 1985
Chris WoodMon-ElChris Wood was 29 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Thu, Apr 14 1988
Jeremy JordanWinn SchottJeremy Jordan was 32 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Tue, Nov 20 1984
Mehcad BrooksJames 'Jimmy' Olsen / GuardianMehcad Brooks was 37 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Sat, Oct 25 1980
Floriana LimaMaggie SawyerFloriana Lima was 36 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Thu, Mar 26 1981
Sage BrocklebankGuardSage Brocklebank was 39 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Sat, Jan 14 1978
David CarzellKennethDavid Carzell was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday
Nick FontaineJoshNick Fontaine was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday
Cameron ForbesChiefCameron Forbes was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday
Hyuma FrankowskiJeremyHyuma Frankowski was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday
Meghan GardinerSoccer MomMeghan Gardiner was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday
Khaira LedeyoVice PrincipalKhaira Ledeyo was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday
Alex ZaharaLittle Kryptonian ManAlex Zahara was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday
Sofia VassilievaOliviaSofia Vassilieva was 25 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Thu, Oct 22 1992
Emma TremblayRuby AriasEmma Tremblay was 13 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Wed, Apr 21 2004
Erica DuranceAlura Zor-ElErica Durance was 39 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Wed, Jun 21 1978
Anjali JaySelenaAnjali Jay was 42 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Sat, Aug 09 1975
Carl LumblyMyr'nn J'onzzCarl Lumbly was 66 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Tue, Aug 14 1951
Chad LoweThomas CovilleChad Lowe was 49 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Mon, Jan 15 1968
Crew
Jesse WarnDirectorJesse Warn was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday
Thomas MaAssistant DirectorThomas Ma was 21 in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Sat, Jun 15 1996
Paula YooWriterPaula Yoo was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday
Katie Rose RogersWriterKatie Rose Rogers was >> in Supergirl - Season 3 - The Faithful (Episode 4).
Birthday: Unknown Birthday