Self

Stephen Hawking

Acting

Self - Stephen Hawking's Mother

Isobel Hawking

Acting

Self - Stephen Hawking's Aunt

Janet Humphrey

Acting

Self - Stephen Hawking's Sister

Mary Hawking

Acting

Self - Childhood Friend

Basil King

Acting

Self - Oxford Classmate

Derek Powney

Acting

Norman Dix

Acting

Self - Stephen Hawking's Tutor

Robert Berman

Acting

Gordon Berry

Acting

Roger Penrose

Acting

Dennis Sciama

Acting

John Archibald Wheeler

Acting

Brandon Carter

Acting

John R. Taylor

Acting

Kip Thorne

Acting

Don Page

Acting

Christopher Isham

Acting

Brian Whitt

Acting

Raymond Laflamme

Acting