Secret Invasion marks the first Disney+ series in Phase 5 of the Marvel Cinematic Universe, following Nick Fury and his dwindling array of allies as they strive to save the world from a clandestine Skrull invasion. Secret Invasion introduces interesting characters and has the potential to be the MCU's best Disney+ series yet.

As controversial as some of the MCU's Disney+ series have been, each show has consistently introduced new and compelling characters to the franchise. From WandaVision's Agatha Harkness to Loki's Agent M. Mobius, MCU fans have met several great new characters in the Disney+ series.

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10 Sonya Falsworth (Secret Invasion)

Secret Invasion's Sonya Falsworth

Olivia Colman has joined the MCU as Sonya Falsworth in Secret Invasion. Falsworth is a British secret agent who has a history with Nick Fury and is already shaping up to be one of the best spies in the MCU.

Falsworth is as mysterious as they come, even giving Nick Fury himself a run for his money when it comes to keeping secrets. Colman is a delight to watch in the role, as the actor is clearly having a ball portraying such a fun character. As Secret Invasion features multiple dark twists during its six-episode run, audiences are sure to learn much more about Sonya Falsworth, including whether she can truly be trusted.

9 Maya Lopez (Hawkeye)

Maya Lopez as Echo in the MCU's Hawkeye series

Disney+'s Hawkeye introduced several terrific characters to the MCU, including Alaqua Cox's Maya Lopez. Maya is Wilson Fisk's former associate who apparently left the criminal underworld behind. Maya's arc in Hawkeye will lead into the events of her own upcoming series, Echo, which is set to hit Disney+ in November.

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Audiences haven't seen much of Maya Lopez yet, but she has already proven to be a standout Disney+ character. Maya, a member of the Deaf community, marks an important hallmark of representation for the MCU. She has also exhibited incredible depth and intrigue as a character, so it's no surprise that audiences can't wait to see more of her.

8 John Walker (The Falcon and The Winter Soldier)

Wyatt Russell As John Walker In The Falcon And The Winter Soldier

Wyatt Russell made his first appearance as John Walker, the United States government's choice to replace Steve Rogers as Captain America, in The Falcon and the Winter Soldier. After taking up the new mantle of U.S. Agent, Walker is currently set to return to the MCU in the upcoming Thunderbolts movie.

Walker may not be the most likable MCU character, but he is certainly one of the most intriguing. The antihero's intense need to be loved by the world makes for a compelling character arc, especially as he begins to embrace his more brutal nature as a side effect of the super soldier serum. While viewers have yet to see where Walker's new role on the Thunderbolts will take him, it is sure to be an entertaining ride.

7 Jennifer Walters (She-Hulk: Attorney at Law)

Jennifer Walters trains with Hulk in She-Hulk: Attorney At Law.

She-Hulk: Attorney at Law introduced audiences to Tatiana Maslany's Jennifer Walters, a.k.a. She-Hulk. The cousin of Bruce Banner, Jennifer accidentally becomes the She-Hulk when her cousin's blood mixes with her own. From that point on, Jennifer must find a healthy way to cope with her new life as a superhero.

She-Hulk was unfairly review-bombed upon its release, blinding some audiences to the tremendous depth of its main character. Regardless of the Disney+ series' overall quality, Jennifer's compelling character arc sees her learn to accept herself for who she is, not who She-Hulk has become in the press. At her core, Jennifer is one of the MCU's most relatable characters as she searches for self-actualization despite her increasingly nonsensical life.

6 Agent Mobius (Loki)

Owen Wilson as Mobius in the MCU Disney+ show, Loki

Owen Wilson's Agent Mobius M. Mobius is a high-ranking figure in the Time Variance Authority who's introduced in Loki. Mobius takes a specific interest in Loki variants as he works to clean up the Sacred Timeline, eventually coming to help the God of Mischief in discovering the truth about the TVA and He Who Remains.

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Aided by Wilson's compelling performance, Mobius is a standout character in Phase 4 of the MCU. The TVA agent's chemistry with Tom Hiddleston's Loki is a highlight of the series. Audiences are keen to see more of Wilson's compelling character, who is set to return to screens in October 2023 in the second season of Loki.

5 Kamala Khan (Ms. Marvel)

Kamala Khan using her powers In Ms. Marvel on Disney+

Iman Vellani made her acting debut in Ms. Marvel, portraying Kamala Khan, a teenage girl who stumbles upon a mysterious bangle that unlocks her mutant abilities. Building off of her incredible Disney+ debut, Kamala is currently slated to return in late 2023 alongside Monica Rambeau and Carol Danvers in The Marvels.

Even after only one appearance, Kamala Khan is one of Phase 4's standout characters. Ms. Marvel is a relatable and amusing teenager who brings a new energy to the MCU that has been missing for some time. Kamala's unbridled enthusiasm is sure to be a highlight of her upcoming appearance alongside other powerful superheroes.

4 Marc Spector (Moon Knight)

Moon Knight as he appears in his MCU Disney+ series.

Marc Spector is the protagonist of Disney+'s Moon Knight, but he is a far more complicated character than he appears. Portrayed by Oscar Isaac, Spector is the avatar of the Egyptian god Khonshu who lives with Dissociative Identity Disorder. As such, audiences get to meet his alters, including Steven Grant and the mysterious Jake Lockley.

Marc Spector is not only one of Phase 4's best new characters, but he is also the most complicated. Marc's emotional journey is surprisingly poignant as the events of Moon Knight play out, leading him on a path of self-discovery as he works through his childhood trauma. Aided by one of Isaac's best performances of his career, Marc is clearly one of the MCU's best new characters.

3 Agatha Harkness (WandaVision)

Kathryn Hahn as Agatha Harkness in WandaVision

Kathryn Hahn stole the show when she first appeared as Agatha Harkness in the MCU's first Disney+ series, WandaVision. After a dazzling debut, Harkness will return in her very own spinoff series, Agatha: Coven of Chaos, which will be released as a part of Phase 5.

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Agatha is one of the best parts of WandaVision as she playfully leads Wanda--and the audience--along in the sitcom world of Westview. Hahn's comedic background is perfect for this character, who also happens to be the only villain in the MCU to have her very own theme song.

2 Sylvie (Loki)

Sylvie from Disney+'s Loki

Sophia Di Martino joined the Marvel Cinematic Universe with Loki's first season where she portrayed Sylvie, a female variant of the God of Mischief. Sylvie and Loki eventually reach He Who Remains at the end of time, leading the Goddess of Mischief to make the controversial decision to kill He Who Remains. This action will have major ramifications on Loki Season 2 and the entire MCU.

Loki is one of the MCU's best Disney+ series thanks to characters like Sylvie, whose complexity makes for a compelling narrative. TVA's decision to prune her entire timeline causes her great pain, which is evident in her every action. Ultimately, this is why she makes her controversial choice at the end of Loki's first season. Audiences may not know what Loki Season 2 has in store for Sylvie, but it is sure to be an interesting adventure.

1 Kate Bishop (Hawkeye)

Kate Bishop played by Hailee Steinfeld in MCU's Hawkeye.

Hailee Steinfeld fulfilled viewers' casting dreams as Kate Bishop in Hawkeye. During the course of her Disney+ debut, Kate becomes Clint Barton's partner in taking down the Kingpin and his gangs in New York. While her future has not yet been established, the MCU is clearly setting Kate Bishop up to become Hawkeye after Clint Barton.

Kate Bishop is engaging as a character, inviting audiences to sympathize with her as her entire world crumbles after a staggering revelation about the Bishop family. Nevertheless, the humor that Steinfeld brings to the role also makes Kate one of the most hilarious MCU characters. Hawkeye fleshes out both the comedic and dramatic sides of Kate Bishop's character, and audiences hope to see much more of her in the franchise's future.