Heat Vision has learned that Anthony Mackie is in negotiations to appear in The Winter Soldier as Sam T. Wilson (a.k.a. Falcon). The character was introduced in “Captain America” #117 in 1969, and is the first full-blown African-American superhero featured in mainstream comics (preceding Luke Cage by nearly three years).
Wilson was introduced as an unnamed social worker in Harlem (during the 1960s), who was recruited by the Red Skull under false pretense. The latter then used the Cosmic Cube to give Wilson psychic powers, which allowed him to communicate telepathically with birds (and thus, control them). Wilson eventually discovered the truth about who the villain and his allies were, and escaped. Shortly thereafter, he encountered Steve Rogers, who convinced Wilson to take on a superhero persona: Falcon, a crime-fighter whose strength is enhanced by his suit (which also allows him to fly).
Falcon would go on to have several adventures with Captain America in the 1970s, when Steve Englehart retconned the character’s backstory so that he’d spent some time living as a gangster called Snap, following the murder of his parents (Wilson’s memories were revealed to have been altered by Red Skull, via the Cosmic Cube). The superhero was also briefly an Avenger during the late ’70s and late ’90s, and appeared in a handful of Captain America comic storylines in the early 2000s (he’s now a recurring player in the regular CA series, which began with #6000 in 2009).