Horizon

Hannah Fry

Self - Presenter

Ages ?-41

Richard Feynman

Himself

Ages 45-107

Professor Brian Cox

Presenter

Ages ?-57

Giles Yeo

Presenter

Ages ?-52

Xand van Tulleken

Presenter

Ages ?-47

David Attenborough

Ages 37-99

Steven Mackintosh

Himself - Narrator

Ages ?-58

Kevin Fong

Self - Presenter

Michio Kaku

Ages 17-78

Kelly Hunter

Herself - Narrator

Ages 0-62

Helen McCrory

Narrator

Ages ?-57

Helen Czerski

Self - Presenter

Ages ?-46

Iain Stewart

Self - Presenter

Ages 0-61

David Lutyens

Dilly Barlow

Narrator

Jack Fortune

Narrator (voice)

Richard Branson

Ages 13-75

Nicholas Soames

Bob Brier

Robert Winston

Ages 23-85

Robert Gallo

Trevor R. Bryce

Joshua Wurman

Bill Paterson

Ages 18-80

Lori Schappell

Gary England

Ages 24-86

Reba Schappell

Andrew Scott

Narrator

Ages ?-48

Rupert Penry-Jones

Himself - Narrator

Ages ?-55

Adrian Lester

Himself - Narrator

Ages ?-57

Dr Adam Rutherford

Presenter

Hugo Speer

Narrator

Ages ?-56

G

Gabriel Weston

Presenter

David Harewood

Narrator

Ages ?-59

John Hannah

Himself - Narrator

Ages 1-63

Peter Gibbs

Self - Presenter

Adam Pearson

Presenter

Chris van Tulleken

Presenter

Daniel Kahneman

Presenter

T

Toby Macdonald

Presenter

U

Uta Frith

Presenter

Anne Glover

Herself - Presenter

Dr Zoe Williams

Herself - Presenter

Ages ?-45

Tim Berners-Lee

Himself - Interviewed Guest

Ages 8-70

L

Laura Waters

Herself - Presenter

Julian Assange

Himself - Interviewed Guest

Ages ?-54

Robert Smith

Himself

John Hammond

Self - Presenter

Liz Bonnin

Self - Presenter

Ages ?-53

Paul McGann

Himself

Ages 4-65

Toby Jones

Narrator

Ages ?-59

Danny Wallace

Himself

Ages ?-48

Fergal Keane

Self - Presenter

Ages 3-64

Katherine Parkinson

Narrator

Ages ?-47

Chris Packham

Self

Ages 2-64

Murray Gell-Mann

Yuval Ne'eman

Nicholas Samios

Arthur C. Clarke

Ages 46-107

Frank Gillard

Narrator

Terrence Hardiman

Trofim Lysenko

Ages 26-88

David Swift

Vavilov

Simon Lack

Zhukovskii

Richard Ireson

Prezent

G

George Cormack

Michurin

Forbes Collins

Iakovlev

Richard Beale

Lysenko's father

Duncan Geddes

Self

Sean Conroy

Self

Peter Middleton

Self

Buckminster Fuller

Self

Ages 68-130

Robert Horne

Self

Aaron Klug

Self

J

John Money

Self

David Reimer

Self

Dilly Barlow

Narrator

B

Ben Carson

Self

Zam Baring

Narrator

Maria Pearson

Self

David Van Horn

Self

L

Larry Zimmerman

Self

Suzan Harjo

Self

Richard Jantz

Self

Sue Savage-Rumbaugh

Self

Patricia Marks Greenfield

Self

Duane Rumbaugh

Self

Sarah Boyson

Self

B

Beatrix Gardner

Self

Rayna Green

Self

Ian Holm

Narrator

Ages 32-94

T

Tim Ingold

Self

Paul Martin

Self

David Meltzer

Self

David Harris

Self

Abbot Sekaquaptewa

Self

James Hazeldine

Self

Ages 16-78

Thomas A. Edison

Self

Ages 116-178

Michael Swann

Narrator (voice)

Francis Crick

Self

James Watson

Self

Ages 35-97

V

Vernon Joyner

Narrator (voice)

J

John Slack

Narrator (voice)

C

Christophe Boesch

Self

Sarah Boysen

Self

Frans de Waal

Self

Jane Goodall

Self

Ages 29-91

Martin Muller

Self

C

Crickette Sanz

Self

Robert Sussman

Self

Michael Tomasell

Self

Richard Wrangham

Self

Danny Wallace

Presenter

Frank Borman

Self

Ages 35-97

Dick Gilling

Self - Presenter

Rosemary Leach

Self - Narrator (voice)

Ages 28-89

Lucian Msamati

Narrator

Ages ?-49

B

Bill Paterson

Narrator

Bernard Hill

Narrator

Ages 19-80

Jemma Redgrave

Narrator (voice)

Ages ?-60

Saul Perlmutter

Self - Lawrence Berkeley Lab

Alex Filippenko

Self - Astronomical Observer

Robert Kirshner

Self - Astronomical Observer

Rocky Kolb

Self - Astronomical Theorist

Michael Turner

Self - Astronomical Theorist

Adam Riess

Self - University of California, Berkeley

Stephen Hawking

Himself

Ages 22-83

H

Howard Lang

Mr. Rothery

Ages 52-114

Ruth Wilson

Narrator

Ages ?-43

Stephen Kemble

Narrator

Derek Jacobi

Narrator

Ages 25-86

Tony Benn

Ages 38-100

Nicola Walker

Narrator

Ages ?-55