Alveus

Alveus (Hive) was a parasitic Inhuman who was banished to a barren planet because of his great powers. Alveus' worshipers founded a secret society with the sole purpose of bringing him back to Earth to conquer it. Over the centuries, that society evolved into Hydra. Eventually, Alveus possessed Grant Ward's dead body when he was killed by Phil Coulson with his prosthetic hand on Maveth and was able to return to Earth once more. Working with Gideon Malick, Alveus soon took the reigns of Hydra from him.

Seeking to transform the Earth's population into Inhumans so they could live in peace, Alveus and his small army attempted use Kree blood to recreate the original experiments he had endured thousands of years earlier, kidnapping Holden Radcliffe in order to use his genius to complete his plants while battling the continued efforts of S.H.I.E.L.D. and the Secret Warriors to stop him. As Alveus attempted to complete his plan by detonating a nuclear war head filled with Terrigen Mist into the Earth's atmosphere, he was defeated when Lincoln Campbell trapped himself and Alveus with the bomb and allowed it to explode safely in space, destroying Alveus.

Powers
Parasitic physiology: Alveus was an Inhuman who achieved his genetic potential after undergoing Terrigenesis, granting him incredible superhuman powers. The transformation was physical, arguably the most drastic physical change ever seen in an Inhuman as he transitioned ifrom a human to a tentacled, parasitic super-organism composed of an innumerable individual parasites.
 * Possession: Alveus' Terrigenesis transformed him into a parasitic life form capable of inhabiting human corpses and using them as vessels, through which he could perform basic actions. Alveus was able to access the memories and personalities of his current and past hosts, although Alveus could lose control of his own personality and actions if forced to recall all of his hosts' memories at once. However, Alveus