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Cast of It Chapter 1 – Complete Cast List and Key Roles

By Andrew Brown · April 11, 2026

It Chapter One, released in 2017, brought Stephen King’s terrifying novel to life with an ensemble of child actors led by Bill Skarsgård’s chilling portrayal of Pennywise the Dancing Clown. The film centres on seven outcast children in Derry, Maine, who confront an ancient evil haunting their town.

Directed by Andy Muschietti, this adaptation marked a significant moment in horror cinema, distinguishing itself from the 1990 miniseries through its focus on the Losers Club’s childhood years. The cast features Jaeden Martell, Sophia Lillis, and Finn Wolfhard amongst others, delivering performances that balanced adolescent vulnerability with supernatural terror.

Who is in the full cast of It Chapter 1?

Bill Skarsgård
Pennywise
Replaced Will Poulter
Jaeden Martell
Bill Denbrough
Leader with stutter
Sophia Lillis
Beverly Marsh
Breakout performance
Finn Wolfhard
Richie Tozier
Known for Stranger Things
  • The seven members of the Losers Club were portrayed by largely unknown child actors at the time of casting
  • Bill Skarsgård joined the production after Will Poulter departed due to scheduling conflicts
  • The ensemble spent months building chemistry before filming to authentically portray childhood friendship
  • Andy Muschietti directed the cast after previously working on Mama (2013)
  • The screenplay adapted the first half of Stephen King’s 1986 novel It
  • Jackson Robert Scott’s brief appearance as Georgie Denbrough became one of the film’s most iconic sequences
Fact Detail
Director Andy Muschietti
Release Year 2017
Based On Stephen King’s 1986 novel It
Screenwriters Chase Palmer, Cary Fukunaga, Gary Dauberman
Pennywise Actor Bill Skarsgård
Bill Denbrough Jaeden Martell
Beverly Marsh Sophia Lillis
Richie Tozier Finn Wolfhard
Ben Hanscom Jeremy Ray Taylor
Eddie Kaspbrak Jack Dylan Grazer
Mike Hanlon Chosen Jacobs
Stan Uris Wyatt Oleff

Who plays Beverly Marsh in It Chapter 1?

Sophia Lillis as the Heart of the Losers

Sophia Lillis portrays Beverly Marsh, the only female member of the Losers Club, whose character arc involves escaping domestic abuse whilst battling supernatural evil. Lillis was fifteen during production, bringing both vulnerability and resilience to the role.

The Blood in the Bathroom Scene

One of the film’s most disturbing sequences involves Beverly discovering her bathroom sink spewing blood, a manifestation of Pennywise’s psychic attack visible only to children. This scene required extensive practical effects and multiple takes to achieve the visceral horror central to the narrative.

Key Performance Note

Lillis’s portrayal earned critical acclaim for balancing the character’s traumatic home life—personified by Stephen Bogaert as her abusive father Alvin Marsh—with her emerging strength as a member of the group.

Who plays Eddie and the bully in It Chapter 1?

Jack Dylan Grazer as Eddie Kaspbrak

Jack Dylan Grazer plays Eddie Kaspbrak, the hypochondriac member of the Losers Club who faces a rotting leper manifestation of Pennywise. His character’s overprotective mother, Sonia Kaspbrak, is portrayed by Molly Atkinson, who brings a suffocating intensity to the role.

The Bowers Gang

The antagonistic bullies include Henry Bowers (Nicholas Hamilton), the psychopathic leader; Victor “Vic” Criss (Logan Thompson); Reginald “Belch” Huggins (Jake Sim); and Patrick Hockstetter (Owen Teague), who keeps a refrigerator filled with killed animals. These characters provide both human and supernatural threats throughout the narrative.

Who plays Richie’s mom in It Chapter 1?

Available cast documentation does not identify the actress portraying Richie Tozier’s mother in It Chapter One. Whilst Molly Atkinson appears in the cast as Sonia Kaspbrak—Eddie’s mother—no details are available regarding Richie’s parental figures within the provided sources.

Casting Clarification

Sonia Kaspbrak (Eddie’s mother) is confirmed as Molly Atkinson, whilst Richie Tozier’s mother remains uncredited in the available documentation.

Information Gap

Comprehensive details regarding Maggie Tozier and other parental roles are not included in primary cast listings.

When did the cast come together for It Chapter One?

  1. Casting Announcements (2016): Will Poulter was initially attached to play Pennywise before departing due to scheduling conflicts.
  2. Bill Skarsgård Cast (2016): Skarsgård replaced Poulter, joining the ensemble of child actors already selected for the Losers Club.
  3. Principal Photography (2016): The young cast filming together in Toronto and various locations representing Derry, Maine.
  4. Premiere (2017): The film debuted in September 2017, introducing the ensemble to international audiences.

What is confirmed about the Chapter 1 cast?

Established Information Information That Remains Unclear
Bill Skarsgård portrays Pennywise, replacing Will Poulter Whether any cast members improvised significant dialogue
Molly Atkinson plays Sonia Kaspbrak (Eddie’s mother) The identity of the actress playing Richie Tozier’s mother
The seven Losers Club members and their respective actors Specific details regarding casting of It Chapter Two for comparison
Jackson Robert Scott appears as Georgie Denbrough Exact filming dates for specific cast members

How does this cast fit within Stephen King’s universe?

It Chapter One represents the first cinematic adaptation of Stephen King’s 1986 novel, focusing exclusively on the childhood timeline of the Losers Club. This approach allowed the young cast to develop their characters without the interruption of adult counterparts, creating a standalone narrative that differs from other horror ensemble casts in its exclusive focus on adolescent protagonists.

The film’s success relied heavily on the authentic chemistry between the child actors, much like modern ensemble horror-comedy casts, though with significantly darker thematic material. The adaptation stripped away the novel’s more cosmic horror elements to concentrate on the interpersonal dynamics and coming-of-age themes central to the source material.

Where does this cast information originate?

The primary sources for cast verification include Wikipedia’s comprehensive film entry and Rotten Tomatoes cast listings. Additional confirmation regarding the replacement of Will Poulter by Bill Skarsgård appears across multiple documentation sources. For a complete cast list, see Es 3 Welcome to Derry. Es 3 Welcome to Derry

The film follows seven outcast children—the Losers Club—who confront an ancient, shape-shifting evil that emerges from the sewers of Derry, Maine.

— Wikipedia, It (2017 film)

What defines the cast of It Chapter One?

The cast of It Chapter One comprises seven young actors led by Jaeden Martell, Sophia Lillis, and Finn Wolfhard, facing Bill Skarsgård’s Pennywise in a faithful adaptation of Stephen King’s novel. Whilst comprehensive details exist for the Losers Club and primary antagonist, certain supporting roles—including Richie Tozier’s mother—lack verification in available sources. The ensemble’s chemistry remains the film’s defining characteristic, distinguishing it within the horror genre alongside productions such as Cast of The Conjuring: Last Rites.

Frequently Asked Questions

Who comprises the full cast of It Chapter 1?

The main cast includes Jaeden Martell (Bill), Sophia Lillis (Beverly), Finn Wolfhard (Richie), Jeremy Ray Taylor (Ben), Jack Dylan Grazer (Eddie), Chosen Jacobs (Mike), Wyatt Oleff (Stan), and Bill Skarsgård (Pennywise).

Which actress plays Beverly Marsh?

Sophia Lillis portrays Beverly Marsh, the only female member of the Losers Club.

Who originally played Pennywise before Bill Skarsgård?

Will Poulter was initially cast as Pennywise but departed due to scheduling conflicts, leading to Skarsgård’s casting.

Who plays Eddie Kaspbrak’s mother?

Molly Atkinson portrays Sonia Kaspbrak, Eddie’s overprotective mother.

Who plays Richie’s mother in the film?

This information is not available in the provided cast documentation.

Who plays the bully Henry Bowers?

Nicholas Hamilton portrays Henry Bowers, the leader of the Bowers Gang.

Is there information about the Chapter 2 cast?

The provided sources do not contain information regarding It Chapter Two cast comparisons.

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