As "Captain America: Civil War" continued filming in Atlanta, Frank Grillo removed his Crossbones mask on set and revealed the scarring special effects underneath.

Photos of Grillo in the full Crossbones costume surfaced last week, and JustJared has since snapped a few pictures of Crossbones sans mask. Grillo's character, Brock Rumlow, previously appeared in last year's "Captain America: The Winter Soldier." In "The Winter Soldier," Rumlow was trapped inside the Triskelion as it collapsed; he was seen being wheeled out of the wreckage on a stretcher towards the end of the film. In the photos, it seems as though the event led to some permanent scarring, just like his comic book counterpart.

EDITOR'S NOTE: Images removed at the request of the copyright holder.

"Captain America: Civil War" opens on May 6, 2016.