The Essex Serpent (TV) Cast
The cast of The Essex Serpent. Updated on October 2, 2025.
45 actors
Claire Danes
as Cora Seaborne (6 episodes)

Claire Danes plays Cora Seaborne, a widowed woman intrigued by the alleged Essex serpent, whose inquisitiveness leads her to question local myths and beliefs.

Tom Hiddleston
as Will Ransome (6 episodes)

Tom Hiddleston portrays Will Ransome, the village vicar whose relationship with science and religion is challenged upon meeting Cora.

Frank Dillane
as Dr Luke Garrett (6 episodes)

Frank Dillane takes on the role of Dr. Luke Garrett, a surgeon and Cora's would-be suitor, who is entranced by the scientific possibilities the serpent might represent.

Clémence Poésy
as Stella Ransome (6 episodes)

Clémence Poésy appears as Stella Ransome, Will's wife, whose grace and serenity mask the complexities of her internal struggles.

Hayley Squires
as Martha (6 episodes)

Hayley Squires plays Martha, Cora's close friend and confidante, whose progressive views challenge the status quo.

Gerard Kearns
as Henry Banks (6 episodes)

Gerard Kearns portrays Henry Banks, a local man deeply affected by the serpent's mythology.

Michael Jibson
as Matthew Evansford (6 episodes)

Michael Jibson takes the role of Matthew Evansford, a community member whose encounters with the fabled beast stir unrest.

Caspar Griffiths
as Frankie Seaborne (6 episodes)

Caspar Griffiths plays Frankie Seaborne, Cora's curious and science-minded son who embarks on this mysterious journey with his mother.

Dixie Egerickx
as Jo Ransome (6 episodes)

Dixie Egerickx portrays Jo Ransome, Will and Stella's daughter, whose youthful innocence belies a sharp intellect.

Ryan Reffell
as John Ransome (6 episodes)

Ryan Reffell is John Ransome, the eldest son of Will and Stella, whose family's involvement with Cora leads to pivotal changes.

Gareth Berliner
as Thomas Taylor (1 episode)

Gareth Berliner plays Thomas Taylor, an Essex villager whose life is thrown into disarray by the arrival of the mysterious Cora Seaborne.

Darragh Cowley
as Young Man (1 episode)
Lily-Rose Aslandogdu
as Naomi Banks (6 episodes)

Lily-Rose Aslandogdu appears as Naomi Banks, a child of the Essex community, embodying the local lore and fear of the serpent.

Robin Berry
as Jonah (6 episodes)
Nitin Ganatra
as Charles Ambrose (3 episodes)
Michelle Asante
as Maureen Fry (2 episodes)
Rebecca Ineson
as Gracie Banks (1 episode)
Cal MacAninch
as Michael Seaborne (1 episode)
Paul Antony-Barber
as Rollings (1 episode)
Benjamin Connolly
as Medical Student (1 episode)
Tommy French
as Samuel (4 episodes)
Henry Davis
as Doctor Morton (3 episodes)
John MacCormick
as Doctor Caldwell (3 episodes)
Jules Chan
as Doctor Lim (2 episodes)
Zoë Scott
as Cora's Maid (3 episodes)
Christopher Fairbanks
as Cracknell (2 episodes)
Deepica Stephen
as Sali (3 episodes)
Yaamin Chowdhury
as Nev (3 episodes)
David Streames
as Landlord (4 episodes)
Neil Harget
as Pub Man (3 episodes)
Jenny Bolt
as Harbour Woman (3 episodes)
Law Ballard
as Aldwinter Woman (3 episodes)
Maddy Collins
as Girl (1 episode)
Kai Boorman
as Boy (1 episode)
Joe Roast
as Cheeky Boy (1 episode)
Nicholas Goh
as Doctor Zhao (1 episode)
Matt Brewer
as Fisherman One (4 episodes)
Steve North
as Fisherman Two (3 episodes)
Jamael Westman
as George Spencer (5 episodes)
Richard Southgate
as Violinist (1 episode)
Raul Fernandes
as Professor Marchand (2 episodes)
Jack Helsby
as Aide (1 episode)
Benedick Blythe
as Dr Beecham (1 episode)
Anna Kirke
as Mrs Beecham (1 episode)
Greta Bellamacina
as Trainee Surgeon (1 episode)
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