Head: MU Black Knight
Body: MU Whirlwind
Gun: RoboCop, I think
Captain Marvel came to earth fighting the Lunartix invasion. In his own language, his name is actually Mar-Vell, but bystanders misheard it and it kind of stuck. Being able to pass as a human means he has little trouble stepping in and assisting against other space born threats or other strange goings on should the need arise. General Hawk on more than one occasion has been grateful for the good Captain's assistance with Star Brigade.