Symbiote

The Symbiote is an living alien lifeform organism which attaches to other people and takes on their appearence, attempting to take over other lifeforms that it needs to survive. The Kraang are afraid of the Symbiotes, and views them as monstrous parasites that feasts and devours any Kraang in sight, which it does.

Hosts

 * Peter Parker. The symbiote's first host.
 * Eddie Brock. Joined together they become the villain Venom and seek revenge on Spider-Man.
 * Cletus Kasady. Created artificially by Doctor Octopus and joined together with Cletus and became Carnage.