Claire Foy as Narrator

Neil Gaiman as Self

Rick Holmes as Self

Miranda Seymour as Self - Mary Shelley's biographer

Sarah Pinborough as Self - Horror writer

Angela Wright as Self - Author of book 'Gothic Fiction'

Margaret Atwood as Self

Stephen Volk as Self

John Stephen Jones as Self - Geneticist

Charlaine Harris as Self - Mystery novelist

Rob Heaps as Lord Byron

Hannah Taylor-Gordon as Mary Shelley

Timothy Renouf as Percy Bysshe Shelley

Catherine Lamb as Claire Clairmont

Sam Swann as Dr. John Polidori