20. Dark Side of the Moon (2018)
Supergirl is stunned to discover that a part of Krypton survived. Meanwhile, Alex is attacked while out with Ruby, and Lena considers how far she will go to keep Reign contained.
Release date: 2018-05-28
User rating:
6.44 / 10
16 votes
Season number: 3
Episode number: 20
Runtime: 42 minutes
Director: Hanelle M. Culpepper
Writers: Derek Simon, Katie Rose Rogers
Guest stars
Cast
Melissa Benoist
as Kara Danvers / Supergirl / Kara Zor-El
Chyler Leigh
as Alex Danvers / Sentinel
David Harewood
as J'onn J'onzz / Martian Manhunter
Katie McGrath
as Lena Luthor
Odette Annable
as Samantha Arias / Reign
Chris Wood
as Mon-El
Jeremy Jordan
as Winn Schott
Mehcad Brooks
as James 'Jimmy' Olsen / Guardian
Rest of guest stars - click here to expand
Celeste White Steele - Argo Gentlewoman, Benjamin Goas - Val