Stephen Hawking
Benedict Cumberbatch
Jane Wilde
Lisa Dillon
Martha Guthrie
Alice Eve
Arno Penzias
Michael Brandon
Roger Penrose
Tom Ward
Dennis Sciama
John Sessions
Guildenstern
Che Cartwright
Robert Wilson
Tom Hodgkins
Sir Fred Hoyle
Peter Firth
Isobel Hawking
Phoebe Nicholls
Reporter
Christian Pedersen
Frank Hawking
Adam Godley
Dr. John Holloway
Matthew Marsh
Nurse Susan McClean
Anastasia Hille
George Ellis
Bertie Carvel
Lidia Sciama
Carolina Giammetta
Robert Silkin
Sebastian Armesto
Jayant Narlikar
Rohan Siva
Barmaid
Deirdre Costello
Train Passenger
Linda Spurrier
Hamlet
Anthony Howell
Rosencrantz
Leon Ockenden
Cab Driver
James Warrior
Frink
David McKail
Edgar
Rory Copus
Chris
Philip McGinley
Hugh
Charlie Beall
Cyclist
Mark Wells