Alias
The Monster from Planet X; His Divine Majesty King Groot the 23rd, Monarch of Planet X, custodian of the branch worlds, ruler of all the shades, Flora colossus Information-silk
  
Roter Schädel, Bettman P. Lyles, The Agent of a Thousand Faces (whom he once impersonated during World War II) & The Man (head of the People's Militia)