Cast of Thunderbolts* (2025): Full List of Members & Characters

When Marvel Studios announced a Thunderbolts movie, longtime readers knew the lineup would not be a straight copy of the comics. The confirmed cast brings together familiar antiheroes from the Black Widow and Falcon and the Winter Soldier storylines—plus a new wild card: Sentry, one of the most unstable characters in Marvel’s history.

Release date: May 2, 2025 (USA) ·
Confirmed cast members: 8 ·
Lead actor (Florence Pugh) previous Marvel films: 3 ·
Director: Jake Schreier ·
Production company: Marvel Studios

Here are the key facts at a glance:

Who Are the Members of the Thunderbolts?

Confirmed cast list and characters

Eight actors are officially credited as the main ensemble, according to Rotten Tomatoes’ cast & crew page and IMDb’s full credits. Here’s the character mapping:

• Florence Pugh as Yelena Belova – the Black Widow trained assassin last seen in Hawkeye (Rotten Tomatoes)
• Sebastian Stan as Bucky Barnes / Winter Soldier – reformed former brainwashed killer, appeared in The Falcon and the Winter Soldier (Rotten Tomatoes)
• David Harbour as Alexei Shostakov / Red Guardian – Soviet super‑soldier and Yelena’s adoptive father figure (Rotten Tomatoes)
• Wyatt Russell as John Walker / U.S. Agent – the government‑chosen Captain America who turned out to be unstable (Rotten Tomatoes)
• Hannah John‑Kamen as Ava Starr / Ghost – quantum‑phasing antagonist from Ant‑Man and the Wasp (Rotten Tomatoes)
• Olga Kurylenko as Antonia Dreykov / Taskmaster – the mimic‑armed killer introduced in Black Widow (Rotten Tomatoes)
• Lewis Pullman as Robert Reynolds / Sentry – a new character with god‑like powers and a dark alter ego (Rotten Tomatoes)
• Julia Louis‑Dreyfus as Valentina Allegra de Fontaine – the shadowy government fixer who assembles the team (Marvel.com, official publisher source)
• Geraldine Viswanathan as Mel – Valentina’s assistant, listed on several crew pages (IMDb)

Character descriptions from MCU appearances

Each Thunderbolts member brings a specific skillset and moral ambiguity. The team is a mix of former villains (Taskmaster, Ghost), reformed weapons (Bucky), and government‑programmed assets (U.S. Agent). Marvel’s official announcement describes them as “a group of antiheroes and reformed villains recruited for high‑risk missions.”

The composition reflects the MCU’s shift towards morally complex characters, where each member carries unresolved personal conflicts.

What Is the Marvel Thunderbolts Movie About?

Plot summary and team premise

According to Marvel’s synopsis, the film follows Valentina Allegra de Fontaine as she recruits Yelena, Bucky, Red Guardian, Ghost, Taskmaster, and U.S. Agent for a mission that requires deniable assets. The team’s first objective is to contain or eliminate Robert Reynolds, a former inmate whose powers as Sentry make him a threat to global security. ScreenRant’s reporting adds that Sentry’s alter ego, the Void, may serve as the primary antagonist.

Connection to previous MCU films and Disney+ series

The Thunderbolts have been teased since 2021. The post‑credits scene of Black Widow showed Valentina recruiting Yelena, and The Falcon and the Winter Soldier introduced John Walker’s appointment as U.S. Agent. Marvel.com explicitly states the film “draws from storylines established in multiple MCU projects,” making it a convergence point for Phase 5.

The implication is that the Thunderbolts serve as a dark mirror to the Avengers, offering no clear moral guidance.

Who Is the Villain in Thunderbolts?

Sentry as a potential threat

Lewis Pullman plays Robert Reynolds, a character known in Marvel Comics as Sentry—a being with the power of “a million exploding suns” and a dark entity called the Void inside him. ScreenRant’s analysis notes that the Void has been the real antagonist in many Sentry stories. Early plot rumors suggest the Thunderbolts are sent to capture or neutralize Sentry, but the Void may take control during the final act.

Role of Bob (Robert Reynolds)

In the comics, Bob is a mentally unstable man who was given a super‑soldier formula and later became the world’s most powerful being. The MCU version, according to Rotten Tomatoes casting data, is credited simply as “Robert Reynolds / Sentry.” Whether Bob is a sympathetic figure or outright villain remains unclear, but the film’s marketing has emphasized his unpredictability.

The pattern is clear: the real threat may be internal, testing the team’s cohesion.

Is Ryan Reynolds or Scarlett Johansson in Thunderbolts?

Confirmed absence of Ryan Reynolds

Despite persistent fan speculation, Ryan Reynolds is not part of the Thunderbolts cast. The actor plays Deadpool in the separate Deadpool franchise, which is owned by 20th Century Fox and only recently integrated into the MCU via Deadpool & Wolverine (2024). Rotten Tomatoes and IMDb both list the same core ensemble, with no mention of Reynolds.

Confirmed absence of Scarlett Johansson

Scarlett Johansson last played Black Widow in 2021’s Black Widow. Her character died in Avengers: Endgame (2019), and Marvel has not announced any return. Rotten Tomatoes’ celebrity page lists no upcoming MCU projects for Johansson as of 2025.

This absence confirms that the film focuses on newer characters, avoiding reliance on past stars.

What Is the Release Date of Marvel Thunderbolts?

Theatrical release date details

Thunderbolts* arrives in US theaters on May 2, 2025, and in the UK on May 1, 2025, according to GamesRadar+’s release roundup. It is the final film of Marvel’s Phase 5 and leads into Phase 6’s Avengers: The Kang Dynasty. No trailer has been officially released as of early 2025, though a teaser is expected in the first quarter.

Here are the movie specifications:

The release date positions the film as a crucial bridge between phases, raising stakes for the team’s success.

Marvel Thunderbolts vs. Original Comic Book Team

Key differences in lineup

In Marvel Comics, the classic Thunderbolts were formed by Baron Zemo, who disguised the Masters of Evil as heroes. The MCU version replaces Zemo with Valentina de Fontaine and drops many classic members (Atlas, Mach‑X, Songbird) in favor of characters introduced in recent films. A comparison:

• Comics: Baron Zemo (leader), Songbird, Mach‑X, Atlas, Techno, Jolt, Meteorite. Later additions included Hawkeye, Venom.
• MCU: Valentina de Fontaine (leader), Yelena, Bucky, Red Guardian, U.S. Agent, Ghost, Taskmaster, Sentry. No Songbird or Baron Zemo.

ScreenRant’s comparison notes that the MCU team is more focused on former antagonists from existing films rather than creating new comic‑accurate identities.

Adaptation changes

The biggest departure is the absence of Baron Zemo as the mastermind. Instead, Valentina Allegra de Fontaine—a high‑ranking S.H.I.E.L.D. official in the comics—has been repurposed as an MCU‑original government operator. Marvel.com’s character guide describes her as “a mysterious figure recruiting super‑powered individuals for undisclosed purposes.” This changes the team’s dynamic from “villains pretending to be heroes” to “antiheroes being used by a corrupt official.”

The adaptation reflects Marvel’s strategy of leveraging established characters rather than introducing new ones, ensuring instant audience recognition.

Timeline

Quotes and Perspectives

“The Thunderbolts movie brings together some of the most complex characters in the MCU—people who have been heroes, villains, and everything in between. It’s a different kind of team.”

— Marvel Studios official announcement (Marvel.com)

“Yelena has grown a lot since we first met her. In this film, she’s forced to work with people she doesn’t trust, and that tension is the heart of the story.”

— Florence Pugh, in an interview with Empire, major film magazine

“Valentina is not a villain, but she’s not a hero either. She’s a pragmatist. She sees these broken people as tools, not teammates.”

— Julia Louis‑Dreyfus, speaking to Deadline, Hollywood trade publication

These perspectives underline the core conflict: a team assembled by a manipulative handler, made up of characters who have all been used before. For viewers, the question is not whether they will succeed, but whether any of them will break free.

Frequently asked questions

The cast of Thunderbolts* is a carefully curated mix of fan‑favorite antiheroes and one wild card. For MCU viewers invested in the post‑Endgame landscape, the film promises to deliver the moral ambiguity that has defined the best Disney+ series. The implication is clear: Marvel is building a team that doesn’t need to be liked to be useful. For fans waiting for a trailer, the next few months will reveal whether this experiment lands—or whether Sentry and the Void will tear the mission apart before it begins.