Eddie Redmayne

Character: Stephen Hawking

Felicity Jones

Character: Jane Hawking

Charlie Cox

Character: Jonathan Hellyer Jones

Emily Watson

Character: Beryl Wilde

Simon McBurney

Character: Frank Hawking

David Thewlis

Character: Dennis Sciama

Maxine Peake

Character: Elaine Mason

Harry Lloyd

Character: Brian

Tom Prior

Character: Robert Hawking (Age 17)

Sophie Perry

Character: Lucy Hawking (Age 14)

Finlay Wright-Stephens

Character: Timothy Hawking (Age 8)

Alice Orr-Ewing

Character: Diana King

Thomas Morrison

Character: Carter

Michael Marcus

Character: Ellis

Gruffudd Glyn

Character: Rees

Paul Longley

Character: Barman - Rowing Club

Guy Oliver-Watts

Character: George Wilde

Lucy Chappell

Character: Mary Hawking

Charlotte Hope

Character: Philippa Hawking

Abigail Cruttenden

Character: Isobel Hawking

Nicholas Gerard-Martin

Character: Physicist #1

Brett Brown

Character: Physicist #2

Anthony Skrimshire

Character: Physicist #3

Christian McKay

Character: Roger Penrose

Adam Godley

Character: Senior Doctor - Cambridge Hospital

Nicola Sloane

Character: Bedder

Lottie Hamilton

Character: Robert Hawking (New Born)

Enzo Cilenti

Character: Kip Thorne

Rufus Taylor

Character: Robert Hawking (Age 2)

Delilah Sexton

Character: Lucy Hawking (New Born)

Eileen Davies

Character: Eileen Bond

Simon Chandler

Character: John Taylor

Georg Nikoloff

Character: Khalatnikov

Oliver Payne

Character: Robert Hawking (Age 8)

Raffiella Chapman

Character: Lucy Hawking (Age 6)

Sam Houston

Character: Timothy Hawking (Baby)

Victoria Emslie

Character: Sarah (Geneva Student)

Frank Lebœuf

Character: Swiss Doctor

Will Barton

Character: Technician

Lucy Challenger

Character: Female Fan

Nicola Victoria Buck

Character: Cockcroft Guest #2

Stuart Benson

Character: Cockcroft Guest #3

Andrew Bridgmont

Character: Cockcroft Guest #5

Jamie Edwards

Character: Cockcroft Guest #4

Jumaane Brown

Character: Cockcroft Guest #1

Becky Bush

Character: Undergraduate (uncredited)

Jon Wennington

Character: Journalist (uncredited)

Cynthia Garbutt

Character: Journalist (uncredited)