Who Is Jemm On 'Supergirl'? The DC Comics Character Might Not Be A Villain

Kara may have lost her powers in the upcoming Supergirl episode "Human For A Day," but with a new alien threat on the horizon, she's going to have to rely on her other resources as well as her superhero name and reputation to save the city. Who is new Supergirl alien Jemm, Son of Saturn, played by Charles Halford? Also... since this actor was on NBC's Constantine, and the star of that series appeared on Arrow in character as John Constantine, does that irrevocably rule out the possibility of a Supergirl/Flash/Arrow crossover event? I doubt it, but this does complicate things a bit. Anyway, who is Jemm, and will he endanger National City? Interestingly enough, I have my doubts about his intentions.

According to the official CBS press release, "Kara and her friends must rely on their inner strength and courage when an earthquake strikes National City. Also, Alex’s mistrust of Hank reaches a breaking point when the earthquake traps them in the DEO with Jemm, a powerful alien escapee." Besides the fact that Alex and Hank clearly need to work on their issues, this guy does not sound like good news — especially if you get a load of the picture above. He's not exactly what I would call cute, and only the worst criminals get put in glass cages. Right?

In the comics, Jemm escaped his home planet when his parents were killed and came to Earth — just like Supergirl herself. He has a gemstone on his forehead that makes him able to sense the emotions of others and project whatever emotions he happens to be feeling onto other people. That's kind of cool, and could be useful as a lie detector. The question is — is he a villain? In the comics, Jemm is actually kind of a hero, or at least neutral. He doesn't believe in fighting, after the interplanetary civil war that destroyed his people. He was brainwashed by Lex Luther for a time but ultimately snapped out of it. He's like a cool prince, and there's no evidence to suggest why he was even imprisoned in the first place.

How will this translate to the CBS series? Sure, most of the aliens that the DEO encounters are bad guys that escaped from the prison in the Phantom Zone. However, what if this is an exception like the visitors House of El? We know that the DEO is potentially untrustworthy on Supergirl, and capturing an innocent alien is a perfect way to put that to the test.

Images: Darren Michaels/Warner Bros. Entertainment Inc.; Giphy