- Carla Gugino - The Storyteller
- Greg Sestero - Fiancé
- Katie Parker - Perdita Willoughby
- Kate Siegel - Viola Lloyd
- Fareed Abdelhak - Guest #3
- Jim Piddock - Father Stack
- Arlo Hajdu - Student Overman
- John Prowse - Headmaster
- Rhys Slack - Hooper
- Atlee Smallman - Student Baxley (uncredited)
- Ken Kramer - Dr. Moran
- Roz Murray - Peter's Mother (uncredited)
- Roz Murray - Relative #1
- Alex Essoe - Charlotte Wingrave
- Alex Essoe - Charlotte Wingrave (uncredited)
- Bhavkhandan Singh Rakhra - Clothier (uncredited)
- Roby Attal - Edmund
- Alisha Ahamed - Seamstress
- Lynda Boyd - Judy O'Mara
- Kamal Khan - Family Friend
- Kamal Khan - Older Owen
- Daxton Gujral - Young Edmund
- Calix Fraser - Doll Face Ghost
- Liza Cosier - Receptionist
- Calix Fraser - Doll Face Ghost / Victorian Child (uncredited)
- Liza Cosier - Receptionist (uncredited)
- Calix Fraser - Doll Face Ghost / Victorian Child
- Teryl Rothery - Karen Clayton
- Christie Burke - Bride
- Christie Burke - Older Flora
- Duncan Fraser - Father of the Bride
- Duncan Fraser - Older Henry
- Susan Saint James - Relative #2
- Marc Anthony Williams - Cab Driver
- Thomas Nicholson - Bride's Brother
- Thomas Nicholson - Older Miles
- Conor Wylie - Edmund's Friend
- Carolyn Adair - Family Wedding Guest
- Alice Comer - Young Flora
- Natasha Quirke - Bly Staff Member
- Matthew Holness - Dominic Wingrave
- Lizzy McInnerny - Elspeth
- Pasha Ebrahimi - Constable
- Tim Beckmann - Plague Doctor
- Michael Charrois - Vicar
- Dakota Guppy - Isabel (12 Years)
- Zoë Noelle Baker - Isabel (5 years)
- Zoë Noelle Baker - Isabel (5-9yrs)
- Andrew Kavadas - Priest
- Mark Kandborg - Mr. Willoughby
- Stefania Indelicato - Guest #2
- Jill Morrison - Guest #1
- Aimee Scott
- Kristina Thomas
- Henry James
- Jamie Flanagan
- Nancy Kirhoffer
- David Townsend
- Mike Flanagan
- Diane Ademu-John
- Trevor Macy
- Jackie Lind
- Jonathan Wales
- Amy Barber
- Justine von Winterfeldt
- Taylor Stewart
- Trevor Gates
- Paul B. Knox
Victoria Pedretti interpreta a Dani Clayton en la serie.
Oliver Jackson-Cohen hace el papel de Peter Quint.
Henry Thomas interpreta a Henry Wingrave en la serie.
Amelia Eve hace el papel de Jamie.
T'Nia Miller interpreta a Hannah Grose en la serie.
Rahul Kohli interpreta a Owen Sharma en la serie.
Tahirah Sharif hace el papel de Rebecca Jessel.
Amelie Bea Smith hace el papel de Flora Wingrave.
Benjamin Evan Ainsworth interpreta a Miles Wingrave en la serie.
Carla Gugino interpreta a The Storyteller en la serie.
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