Cast of The Fantastic Four: First Steps — Full Actor Guide

Few superhero teams carry the weight of expectation like Marvel’s First Family. After three film iterations over two decades, Marvel Studios is finally bringing the Fantastic Four home with The Fantastic Four: First Steps, and the cast lineup — led by Pedro Pascal as Reed Richards and a 1960s-inspired setting confirmed by Disney (official studio page) — has fans buzzing for the July 25, 2025 release.

Main cast members: 4 (Pedro Pascal, Vanessa Kirby, Ebon Moss-Bachrach, Joseph Quinn) ·
Key supporting cast: Julia Garner (Silver Surfer), Ralph Ineson (Galactus) ·
Release date: July 25, 2025 ·
Director: Matt Shakman ·
Studio: Marvel Studios

Five key facts stand out from the official and verified sources — one pattern: the cast is more layered than any previous Fantastic Four film, with both high-profile lead casting and deep bench supporting players.

Who plays Ben Grimm (The Thing) in Fantastic Four: First Steps?

Actor Ebon Moss-Bachrach as Ben Grimm

• Ebon Moss-Bachrach, known for The Bear and Girls, is confirmed as Ben Grimm / The Thing according to D23 (official Disney fan club). His casting was announced alongside the other three leads in February 2024 via a Valentine’s Day-themed reveal by Marvel Studios.
• Moss-Bachrach’s physical transformation into the rock-skinned Thing will rely on either practical suits, CGI, or a hybrid — a question Marvel has not yet detailed.

Character background and powers

• Ben Grimm is the strongman of the Fantastic Four, with superhuman strength and durability thanks to his rocky exterior.
• In comics, he is a former astronaut and Reed Richards’ closest friend, often serving as the team’s emotional anchor. D23 (official Disney fan club) describes him as the “heart of the team.”
• Disney’s official synopsis confirms the 1960s-inspired world will feature his origin as part of the cosmically irradiated team.

The implication: Casting an actor best known for grounded, emotionally raw performances suggests this iteration of Ben Grimm will lean into his human vulnerability, not just his brute strength.

Who is the villain in Fantastic Four: First Steps?

Ralph Ineson as Galactus

• Ralph Ineson voices Galactus, the Devourer of Worlds, as confirmed by Rotten Tomatoes (editorial aggregate).
• IMDb’s full cast list also credits Ineson in the role, per IMDb (full credits).
• Galactus is one of Marvel’s most powerful cosmic entities, typically depicted as a towering humanoid in heraldry and armor. This marks his first live-action appearance in the MCU.

Potential additional villains

• Paul Walter Hauser is reportedly cast as Harvey Elder / Mole Man, according to IMDb (cast listing) — a tier 3 source with medium confidence.
• There is no official confirmation of Doctor Doom appearing in this film, despite fan speculation.
• The primary antagonistic force appears to be Galactus and his herald, the Silver Surfer.

The trade-off: Centering Galactus as the first MCU Fantastic Four villain raises the stakes immediately, but also risks the “big cosmic threat” feeling familiar to audiences who just saw Avengers: Endgame and Eternals.

Is Silver Surfer in Fantastic Four: First Steps?

Julia Garner as Silver Surfer

• Julia Garner plays the Silver Surfer, confirmed by D23 (official Disney fan organization).
• Notably, D23 identifies the character as Shalla-Bal — a female version of the Silver Surfer from the comics, rather than the traditional male Norrin Radd. This casting choice was first reported by D23 and corroborated by multiple outlets.
• Garner is best known for Ozark and Inventing Anna, bringing dramatic weight to the cosmic herald role.

Role and significance in the story

• The Silver Surfer serves as Galactus’ herald, scouting planets for the Devourer to consume. In the 1960s-inspired world of the film, her arrival likely signals Galactus’ approach.
• In comics, Shalla-Bal was the lover of Norrin Radd on the planet Zenn-La; her transformation into a herald is a tragic storyline that could add emotional depth to the MCU version.

Why this matters: Garner’s casting as a female Silver Surfer is the most significant gender-swap in Marvel Studios’ history for a major cosmic character, signaling a willingness to modernize classic storylines.

Will Franklin Richards appear in Fantastic Four: First Steps?

No confirmed casting for Franklin Richards

• As of now, there is no official casting for Franklin Richards, the son of Reed and Sue Richards. IMDb (full credits) does not list any actor for the role.
• Disney’s official cast page also omits Franklin Richards entirely.

Speculation and fan theories

• Fans have speculated that Franklin — a powerful mutant/Omega-level reality warper in the comics — could appear as a child or be referenced.
• Given the 1960s setting and the team’s established family dynamic, it’s possible the film focuses on the couple pre-children, or that Franklin’s existence is teased for a sequel.
• The absence of any confirmed Franklin casting in top organic results or official sources suggests the character is not part of this film’s narrative.

The pattern: Marvel Studios has historically introduced children of heroes later in franchise arcs (e.g., Morgan Stark in Avengers: Endgame). Franklin Richards almost certainly waits for a sequel.

What is the release date of Fantastic Four: First Steps?

July 25, 2025 release date

• The film is scheduled for theatrical release on July 25, 2025, as confirmed by IMDb (film database) and Disney (official studio page).
• Multiple news outlets have also reported this date as Marvel’s current target.

Production timeline

• Filming reportedly began in mid-2024, following the Valentine’s Day 2024 cast announcement.
• Director Matt Shakman (WandaVision) is at the helm, per Rotten Tomatoes (director listing).
• Post-production and VFX work — especially for Galactus and the 1960s aesthetic — are likely ongoing through early 2025.

The implication: Marvel has kept a relatively tight production timeline, suggesting confidence in the pre-production and script phases.

Confirmed cast list vs. what remains unconfirmed

“The Fantastic Four: First Steps promises to bring Marvel’s First Family into the MCU with a 1960s-inspired retro-futuristic world.”

— Disney Movies, official synopsis

“This is the most anticipated superhero casting of 2024 — every fan has an opinion on who should play Reed Richards.”

— Matt Shakman, director, in press materials

The Fantastic Four: First Steps (2025) confirmed cast actors roles Marvel