Hal Jordan aka Green Lantern. I'm just speculating. I guess we'll have to wait and see when Supergirl returns for its second season on the CW to see what role he will be playing.
shareHe's in the space pod. He might be playing a character known as Mon-El. I speculate that he will turn into a bad Kryptonian now that Astra/Non have been put down.
shareFrom the DC wiki (this for the original Mon-El, there have been a number of reboots due to DC's schizophrenia):
"Mon-El is a Daxamite superhero inspired by Superboy. His powers are very similar, although he is vulnerable to lead instead of Kryptonite. Superboy put him in the Phantom Zone when Mon-El was fatally poisoned, and Mon-El stayed there until Brainiac 5 discovered a cure in the 30th Century. This lead Mon-El to become a member of the Legion of Super-Heroes."
IMDb lists his character as being in all 22 episodes of season 2.
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