Captain America has a history in comics going back to 1941, and in the last eighty years, he’s had a lot of allies, enemies, and associates that he’s gone into battle with. Any or all of them would be prime candidates to appear in some capacity in the new Disney+ streaming series.
Some MCU fans might be surprised to learn that the Winter Soldier, Bucky Barnes, isn’t the only ‘Bucky’ in the comics. A series of characters have held the title of Bucky, including Rick Jones. Rick Jones is traditionally the best friend of Bruce Banner, the Incredible Hulk.
For the time he served as Bucky when Steve Rogers emerged from the ice back in the 60s. He thought that Jones looked so much like Bucky Barnes that Jones eventually played the part. It didn’t work out, but the series could be a chance to introduce Rick Jones to the MCU.
Americop is a somewhat obscure Captain America villain who could very easily play a role in the MCU series, even if a minor one. Americop was a killer vigilante with superhuman strength and agility. The first version debuted in 1994.
However, the later version that debuted in 2015 had the Americop name branded on a private police force. Sam Wilson, who was Captain America at the time, came into conflict with the Americops when they brutally clashed with protestors.
The Red Skull may be stuck on Vormir in the MCU, guarding over the Soul Stone, but his daughter could play a role back on Earth. Sin is the daughter of the Red Skull in the comics.
Sinthea Schmidt first appeared in 1984, in Captain America #290 by writer J.M. DeMatteis and artist Paul Neary. She takes on the legacy of her father and eventually gains superpowers, like telepathy and telekinesis. She also goes by the alias of Mother Superior when she heads the criminal group known as the Sisters of Sin.
The Golden Girl
Bucky Barnes wasn’t Captain America’s only sidekick in the Golden Age of Comics. Betsy Ross was right there with Steve and Bucky from the beginning, debuting in Captain America Comics #1 in 1941. She didn’t become the Golden Girl until a bit later, but she did become one of Captain America’s biggest allies during the war.
Betsy Ross is not related to the Betty Ross of the Incredible Hulk comics, but she might make an interesting addition in the MCU as an ancestor of the MCU Betty, last seen in the 2008 The Incredible Hulk movie.
Jack Flag debuted in 1994 in Captain America #434 by writer Mark Gruenwald and artist Dave Hoover. He was an associate of Captain America’s, who formed his own civic patrol group in his hometown. He eventually took on a superhero persona after a violent run-in with the Serpent Society.
Flag is one of a number of characters that answered a special hotline that Captain America set up to call in threats back in the 90s. Flag and others would respond when Cap was engaged elsewhere.
One of the other characters connected to the Captain America hotline is Free Spirit. She attained superhuman strength and durability thanks to exposure to radiation. Cathy Webster also came into contact with Captain America through the Serpent Society incursion in Arizona.
A network of related allies might make sense in the MCU, especially in the post-Steve Rogers world, so Cathy and Jack could make an appearance in the series. She was also part of the Stars and Stripes computer collective that helped Rogers.
There have been many versions of Bucky in the comic books. One of them is Fred Davis. Fred Davis is an alternate Bucky from What If..? #4 in August 1977. He takes up the mantle after Bucky’s death in World War II.
He eventually becomes part of an organization called V-Battalion, an international network dedicated to fighting crime. V-Battalion could be a logical outgrowth of The Blip, in much the same way that The Flag Smashers emerged from the harrowing circumstances of the disaster.
Captain America II
With the introduction of Isiah Bradley into the MCU, fans now know there were other Captain Americas in the past. One of the most important ones is also one of the most obscure. The second Captain America is actually a product of a major retcon. Steve Rogers debuted in Marvel Comics after spending decades in ice. But he had been alive and active in the comics in the 50s.
To get around this wrinkle in continuity, Marvel introduced the idea that another man had been Captain America during this time. William Burnside acted in the role alongside Jack Monroe as Bucky, who had been canonized as the 50s Bucky in later retcons.
There have been a number of men who have been Bucky in the comics. One of them is Jack Monroe. Monroe is actually the third man to be Bucky in chronological order.
He first appeared in Captain America #153, by writer Steve Englehart and artist Sal Buscema, in a story designed to explain how Bucky had been active in the 50s despite the retcon that he had died in World War II. Monroe would later become the hero Nomad, who fought with Captain America against Sin and the Red Skull.
Diamondback is one of the love interests of Captain America in the comics, and one of his most complicated relationships. She’s has been perceived as a villain due to her membership in the Serpent Society, but she has also been an ally and a friend, who fought alongside him in many adventures in the late 80s and 90s.
The MCU has yet to introduce her or the Serpent Society. Though it may seem like the opportunity is gone along with Steve Rogers, she could still play a role in the complex world post-Blip as both ally and enemy of Sam and Bucky.