Dominic West
— Narrator (voice)
Jonathan Blake
— Himself
Danny West
— Himself
Norman Fowler
— Himself (as Lord Fowler)
Jonathan Grimshaw
— Himself
Dr Caroline Bradbeer
— Herself
Dr Rupert Whitaker
— Himself
Tony Calvert-Harris
— Himself
Shaun Dellenty
— Himself
Martyn Butler
— Himself
Gary Brough
— Himself
Michelle Ross-Turner
— Herself
Peter Tatchell
— Himself
Lisa Power
— Herself
Peter Madders
— Himself
Tony Whitehead
— Himself
Simon Watney
— Himself
Patrick Lyster-Todd
— Himself