The Vampire Diaries actress Claire Holt is one of the actresses testing for the lead role in CBS' DC Comics Supergirl TV series.
Supergirl co-creator Greg Berlanti teases crossovers with Arrow and The Flash, despite the shows airing on different networks.
Supergirl producers are seeking actors to play Jimmy Olsen, Cat Grant, Winslow 'Wynn' Schott and Hank Henshaw for the CBS series.
Kara Zor-El will have an adopted sister named Alexandra in the CBS TV series Supergirl, which is currently casting for the lead roles.
Laura Vandervoort, who played Supergirl on The CW's Smallville, has some words of wisdom for whoever plays Kara Zor-el next.
DC All Access confirms Supergirl will follow Kara Zor-El taking refuge on Earth, as she comes to embrace her super powers.
Greg Berlanti and Ali Adler are producing the Supergirl series, which follows Superman's cousin Kara Zor-El as she starts using her powers.