Looks like Supergirl will have yet another powerful alien to deal with. CBS has revealed Charles Halford will guest-star as a character named Jemm in Supergirl episode 7 (airing Dec. 7). CBS didn't offer any details on the character, but we know DC Comics has a super-powered alien named Jemm, Son of Saturn.
Halford recently portrayed Chas on the cancelled NBC Constantine series.
We Got This Covered has the full story below.
Supergirl Casts Constantine Actor As Jemm, Son of Saturn - https://t.co/fjGvaFpMvu #Supergirl pic.twitter.com/3ZA9zgZ1rH— We Got This Covered (@wgtc_site) November 18, 2015