Crossbones

Crossbones is a Neo-Nazi supervillain from Marvel comics who often works as a henchman for the Red Skull - as a result he is one of Captain America's more recurring enemies and was infamous for his part in the apparent death of Captain America following the events of the Marvel Civil War.

He has some similiarities to Bane, being a muscular thug who wears a mask - however he is much more of a racist than Bane and is loyal to the Red Skull to the end: his name is somewhat of a reference to the popular phrase "skull and crossbones": further solidifying his partnership with the Red Skull and animosity with Captain America.