Agents Of S.H.I.E.L.D. Alien Race Officially Revealed
In an interview with TV Guide, Agents of S.H.I.E.L.D. executive producer Jeffrey Bell has confirmed that the blue alien is Kree . It will be official in the December 2 episode of the series, “Ye Who Enter Here.”
"Our people don't know anything about the Kree or that there's a planet full of them," Bell says. "What they do know is that the strange carvings created by Coulson after he was injected with the Kree serum are actually the map of a city, and they need to find that city before Hydra does. But where is it? Here or on another planet?"