Henry Ian Cusick

Gideon Mantell

Paul Brightwell

Leney

Michelle Bunyan

Caroline Owen

Alan Cox

Richard Owen

Kristian Griffiths

Walter Mantell (Aged 14-18)

Derek Jacobi

Narrator (voice)

Rebecca McClay

Mary Anning

Robert Morgan

Charles Lyell

Michael Pennington

William Buckland

Rachel Shelley

Mary Mantell

Laurie Goode

Removal Man (uncredited)