He is human I believe, so without helmet he has a normal human face. There have also been several who have taken the alias of Kang(Theres actually a whole council of them
).
"Nathaniel Richards was a scholar born in the 30th century of an alternate, more advanced timeline of Earth-616. Bored with the perfection of his society, Richards became fascinated with history and discovered the time travel technology created by one of his ancestors, Victor Von Doom. Richards then traveled back in time to ancient Egypt c. 2950 B.C., in a Sphinx-shaped timeship, and became the Pharaoh Rama-Tut, with intentions of claiming En Sabah Nur the mutant destined to become Apocalypse as his heir. He was briefly blinded in a crash, but a radioactive herb restores his sight after he scares the natives by firing his ray-gun. Richards's rule lasts until being driven off after a defeat at the hands of the time-displaced heroes of the 20th century, the Fantastic Four, who had travelled back in time after seeing a record of a cure for blindness, which they hope to get for Alicia Masters, (with some help from a time-traveling Doctor Strange and Khonshu). The Fantastic Four are placed under mind-control by Kang's Ultra-Diode Ray; he makes the Invisible Girl his Queen, puts the Thing to work on the ship, places Mister Fantastic as a lookout for his armies, and makes the Human Torch his court jester. But Doctor Strange turns the Thing back freeing him from the ray's control; he frees the Invisible Woman as he begins turning back, who frees the Torch then the Thing, and the Torch frees Reed. They get into the Sphinx, but Kang escapes into time. He returns to rule, and encounters the time-traveling West Coast Avengers."
Dude has ties to both Dr. Doom and Apocalypse......how much more badassery could one have?
