SpoilerTV - TV Spoilers

Supergirl - Season 4 - BTS Photos + Video *Updated 8th October 2018*

BTS Video

13th August 2018

17th July 2018 - Sam Witwer Appears on Set

Thanks to A for the heads up. Sam Witwer (Once Upon a Time, Being Human) appears to be cast in an unknown role on Season 4 of Supergirl.