Jonny Lee Miller
— Lord Byron
Natasha Little
— Augusta Leigh
Vanessa Redgrave
— Lady Melbourne
Camilla Power
— Lady Caroline Lamb
Julie Cox
— Annabella Millbanke
Stephen Campbell Moore
— John Cam Hobhouse
Sally Hawkins
— Mary Shelley
Branka Katić
— Teresa Guiccioli
Philip Glenister
— William Fletcher
Julian Firth
— Thomas Moore
David Ryall
— Sir Ralph Milbanke
Penny Downie
— Lady Judith Milbanke
Philip Anthony
— Piccadilly Butler
Jean-François Wolff
— Tita
Mark Bazeley
— Trelawney
Tim Potter
— Millingen
Michael Elwyn
— John Murray
Stanley Townsend
— Turkish Governor
Oliver Dimsdale
— Percy Bysshe Shelley
Miles Richardson
— Reverend Noel
Pauline Moran
— Mrs. Curtain
Nancy Farino
— Medora (aged 4)