Ghost

Ghost is a Marvel Comics character that appeared in Avengers Assemble, voiced by Jim Cummings. He is an Inhuman with the power to become either invisible or intangible. His suit allows him to control all forms of technology, his gun fires electricity and blasts of concussive force, and he has flamethrowers, grenades and bombs. He is a brilliant scient and tactician.

He hates Tony Stark with a passion, and he infiltrated Stark Tower to steal F.R.I.D.A.Y. Thankfully, the Avengers, Inferno and Kamala Khan managed to defeat him.