The Fantastic Four: First Steps Cast Guide

There’s something special about watching a new team suit up for the first time. Marvel’s First Family finally gets its official 2025 lineup, with Pedro Pascal stepping into Reed Richards’ lab coat and Vanessa Kirby as Sue Storm. Here’s a complete guide to who’s playing whom, plus how this cast compares to what came before.

Movie Title: The Fantastic Four: First Steps ·
Release Year: 2025 ·
Main Cast Count: 4 (Fantastic Four) ·
Galactus Portrayed by: Ralph Ineson

This table condenses the key facts about the film’s production details.

Who is in the cast of The Fantastic Four: First Steps?

Main cast: The Fantastic Four

Marvel Studios has officially confirmed the core quartet for its 2025 reboot. Pedro Pascal will play Reed Richards (Mister Fantastic), the stretchable scientist and team leader. Vanessa Kirby takes on Sue Storm (Invisible Woman), the team’s force-field strategist. Joseph Quinn portrays Johnny Storm (Human Torch), the hot-headed brother. Ebon Moss-Bachrach is Ben Grimm (The Thing), the rock-skinned powerhouse. These four roles form the heart of every Fantastic Four adaptation, and this marks the first time they’ve been cast together in the MCU era (Marvel Studios official site).

Supporting cast: Galactus and other confirmed roles

Beyond the core four, Ralph Ineson has been confirmed as Galactus, the cosmic world-eater (Forbes report). Additional cast members include Julia Garner (reported as Shalla-Bal), Paul Walter Hauser (Harvey Elder / Mole Man), and Natasha Lyonne and Sarah Niles in undisclosed roles (People magazine).

The implication: this is the most recognisable cast in any Fantastic Four film, with four actors who each carry genre and awards credibility. That raises expectations for the script and direction.

Who plays Galactus in The Fantastic Four: First Steps?

Ralph Ineson as Galactus

Ralph Ineson, known for his deep voice and roles in The Witch and The First Omen, has been confirmed to portray Galactus. The character will reportedly feature a design inspired by Jack Kirby’s original comic look (Rotten Tomatoes Editorial). Marvel’s official site lists Ineson in the principal cast alongside the Fantastic Four (Marvel Studios official site).

Galactus’s role in the film

As the main antagonist, Galactus is expected to be the cosmic threat driving the plot. The Rotten Tomatoes editorial notes that the film will introduce him as a towering, planet-devouring force, likely setting up a larger role in future MCU phases. Specific story details remain under wraps, but the official trailer teases a confrontation between the Four and the Devourer of Worlds (Marvel Entertainment YouTube official trailer channel).

The pattern: by casting a relatively lesser-known actor rather than a huge Hollywood star, Marvel lets the character — and the cosmic scale — speak for itself.

Who are the new cast members compared to previous Fantastic Four films?

2005 cast vs 2025 cast

The 2005 Fantastic Four film starred Ioan Gruffudd as Reed Richards, Jessica Alba as Sue Storm, Chris Evans as Johnny Storm, and Michael Chiklis as Ben Grimm. The 2025 cast is entirely different: none of the previous actors reprise their roles (Wikipedia open encyclopedia). Pedro Pascal, Vanessa Kirby, Joseph Quinn, and Ebon Moss-Bachrach bring a significantly higher collective profile to the parts — Pascal from The Mandalorian and Game of Thrones, Kirby from The Crown, Quinn from Stranger Things, and Moss-Bachrach from The Bear.

2015 –2017 cast changes

The 2015 Fantastic Four reboot featured Miles Teller (Reed), Kate Mara (Sue), Michael B. Jordan (Johnny), and Jamie Bell (Ben). That version was critically panned and failed to launch a franchise. The 2025 film distances itself from both earlier attempts by leaning into the characters’ classic dynamics and giving each actor a distinct, respected body of work (Rotten Tomatoes Editorial).

The catch: with three previous film iterations (1994 unreleased, 2005, 2015), the 2025 film is the fourth attempt. The cast refresh is necessary, but the story must land.

Is there a Silver Surfer in The Fantastic Four: First Steps?

Silver Surfer appearance status

As of the most recent official sources, Silver Surfer has not been confirmed in the cast. Neither Marvel’s official site nor reputable entertainment outlets like Radio Times entertainment listings or Movie Insider movie database list any actor for the role.

Possible actor for Silver Surfer

Rumors online have speculated about a Silver Surfer cameo, but no credible source has confirmed casting. The character could be introduced in a sequel — Marvel often seeds characters ahead of their debut.

What this means: Silver Surfer is likely being saved for a later entry, allowing Galactus to take the spotlight as the sole cosmic antagonist in this film.

What other characters are in the cast besides the Fantastic Four?

Galactus as main villain

Ralph Ineson is the only confirmed villain from the official lists. His Galactus is the primary antagonistic force. The film’s trailer emphasises his arrival as a world-ending threat (Marvel Entertainment YouTube official trailer channel).

Potential other characters and speculation

Julia Garner is listed as Shalla-Bal — a character who becomes a herald of Galactus in Marvel comics — suggesting a possible Silver Surfer connection. Paul Walter Hauser is reportedly playing Harvey Elder, the Mole Man, a classic Fantastic Four foe. Franklin Richards, the mutant son of Reed and Sue, has not been confirmed; no casting exists in provided data (People magazine).

The pattern: Marvel is stacking the supporting cast with character actors — Hauser, Garner, Lyonne — which hints at a film that values ensemble texture over a single star turn.

“Marvel Studios confirms Pedro Pascal as Reed Richards, Vanessa Kirby as Sue Storm, Joseph Quinn as Johnny Storm, and Ebon Moss-Bachrach as Ben Grimm in The Fantastic Four: First Steps.”

Marvel Studios (official publisher)

“Ralph Ineson’s Galactus will feature the classic Jack Kirby design, staying true to the original comics.”

Rotten Tomatoes Editorial (film review authority)

For Marvel Studios, the choice is clear: deliver a faithful adaptation of the First Family, or risk losing the goodwill built over years. For fans, the cast represents a promise — one that will either be kept when the film lands in 2025, or become another footnote in a troubled franchise history. The outcome rests heavily on Pascal’s performance as Reed Richards.

Frequently asked questions

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