Gauntlet is a member of HYDRA, or perhaps simply a mercenary hired by the group.
However, he was in a hovercraft along with Madame Hydra which was destroyed. He was never seen again and presumed dead.
Gauntlet has no known voice actor.
So far, the only version of the character outside the comics.
In the Comics
Gauntlet is an Inhuman, a group of humans who were experimented on by an alien race and evolved separately from humans with powers similar to mutants.
He has been employed by, and in one instance hired to hunt, Apocalypse.
He has never been employed by HYDRA, and neither has Omega Red.