The latest trailer for Marvel's Eternals features our first true look at the Deviants and our best look since Guardians of the Galaxy at the Celestials, including what appears to be both Arishem the Judge and Kro. Check out that trailer below, and keep reading for our detailed explainer on who appear to be Eternals' main villains!

A recent toy leak seemingly confirms Kro and Arishem the Judge will be the main villains of Marvel's Eternals. But who are these characters, and how will they drive the story?