The Hawkeye streaming series introduced several Marvel Comics characters connected to the Avenger, including Kingpin and Swordsman. But there are also many heroes and villains associated with both Clint Barton and Kate Bishop who remain unexplored in live-action. Key comic book characters like Wonder Man and Gwenpool make a lot of sense in the MCU but have yet to appear onscreen in a movie or show.
The best Hawkeye comic book characters still not in the MCU represent intriguing villains and allies that could form the basis of a potential West Coast Avengers movie or show, featuring either Barton or Bishop. Both characters headlined versions of the team in Marvel Comics and pieces of the iconic squad have been slowly appearing in the MCU over the last few years, making it a great opportunity to fill in some blanks for Hawkeye fans.
Hawkeye's classic comic book mentor, the Swordsman appeared in the streaming series in the form of Jack Duquense. Another mentor from the comics, Trick Shot, potentially serves as a foil for either Barton or Bishop in a future MCU project.
Trick Shot performed in the same traveling circus Barton did in his youth and went on to train him in archery and other skills. He eventually turned into a villain, and his skill with the bow and arrow approaching that of his former student.
Fuse
Fuse joined the modern West Coast Avengers led by Kate Bishop. He also counts among Kate Bishop's best friends in Marvel Comics, even sharing a brief romantic relationship with her. Johnny Watts will certainly appear in the MCU if a younger take on the West Coast squad emerges.
Fuse possesses a great power that would be fun to see onscreen. Somewhat like the classic Thor villain The Absorbing Man, he transforms his body into any substance he touches, including steel and other durable metals.
Moonstone
Hawkeye leads another team in Marvel Comics called the Thunderbolts. Moonstone plays a key role on the team and in this period of Barton's life. She and Barton fall in love during his tenure as leader of the team in the late 1990s.
Moonstone's connection to the Thunderbolts hints at her appearing in the MCU in connection with that team, but she also shares a strong tie to Captain Marvel. Zawe Ashton plays a villain in The Marvels, and there's a strong chance it's Moonstone.
The Hood
Parker Robbins gains magical powers and abilities from the use of a mystical cloak. He fights Barton in the Hawkeye: Freefall series and could be a potential MCU villain who ties the otherwise street-level superhero into the fantastical side of the franchise.
The Hood likely appears in the MCU at some point, given his connections to other mystical characters. He gains power from the Norn Stones at one point, thanks to some help from Loki. He also fights Doctor Strange, increasing his chances of appearing.
Viper
Viper plays a major role in several Marvel superheroes' stories, including the unlikely love interest of Wolverine. She encounters Barton while a member of the Dark Avengers, and actually helps him undermine Mister Negative's planned attack on S.H.I.E.L.D.
Viper's shifting motives and allegiances make her a fascinating character for the MCU to explore. She complicates the plot of any story she's in and her connections to multiple heroes and villains make her a must for the cinematic franchise.
Madame Masque
Madame Masque appeared in the non-canonical Agent Carter series, though she only went by Whitney Frost. The classic Marvel Comics version of the deadly assassin deserves a shot in the MCU given her many run-ins with Hawkeye.
Madame Masque fought against both Barton and Bishop in the best Hawkeye comic books from the 2010s, proving her worth as a villain and giving plenty of material for the MCU to draw from.
Tigra
Tigra joined the original West Coast Avengers lineup led by Barton in the 1980s. Her long association with the team and role in many key storylines make her a high-profile comic book character still not in the MCU.
Tigra maintains her connection to Hawkeye and the Avengers well into the modern day, involved in massive comic book storylines including Civil War and Seige. If the MCU forms the West Coast Avengers, she likely plays a role in some way.
Wonder Man
Wonder Man counts among the most significant comic book characters not yet in the MCU thanks to his essential role in the history of both the Avengers and the original Barton West Coast Avengers. He played key roles in both teams, making his screen absence to this point curious.
Wonder Man's brain patterns served as the template for The Vision during his creation, connecting the two forever in the comics. He also shared a romantic relationship with the Scarlet Witch during his time on the West Coast Avengers, after Vision lost his programming.
Miles Morales
Miles Morales' iconic status as a powerful Spider-Man variant in the comics and now animation easily places him among the best comic characters yet to make their MCU debut, but fans may not realize he shares a connection with Kate Bishop.
He and Kate met in the Ultimate Comics universe, where Kate actually was a HYDRA spy. She betrays him to the organization, destroying their budding romance. The different circumstances in the MCU ensure Miles and Kate experience a different outcome in live-action.
Gwenpool
Gwenpool joined Bishop's West Coast Avengers in 2018 and her zany meta adventures make her an intriguing comic book character for the MCU. She shares many qualities with Deadpool, but her friendship with Kate could see her debut in connection to Hawkeye.
Gwenpool enters the Marvel Universe from the real world, allowing her to break the fourth wall. So far the MCU avoids this kind of storytelling, but with Deadpool on the horizon, she seems more and more likely to appear.