Michael Gambon

as John Harrison

2 episodes

Jeremy Irons

as Rupert Gould

2 episodes

Gemma Jones

as Elizabeth Harrison

2 episodes

Anna Chancellor

as Muriel Gould

2 episodes

Emma Kay

as Laura Gurney

2 episodes

Barbara Leigh-Hunt

as Dodo Gould

2 episodes

Peter-Hugo Daly

as John Jefferies

2 episodes

Alec McCowen

as Sir Frank Dyson

2 episodes

Kevin Hudson

as Lieutenant (uncredited)

2 episodes

T. P. McKenna

as Edmund Burke

2 episodes

Peter Cartwright

as Army Doctor

1 episodes

Alfred Burke

as Rear Admiral

1 episodes

Jonathan Coy

as Admiral Clowdisley

1 episodes

Christopher Hodsol

as Captain Ainsley

1 episodes

Samuel West

as Nevil Maskelyne

1 episodes

Clare Lawrence-Moody

as Staff Nurse

1 episodes

Ian McNeice

as Dr. Bliss

1 episodes

Clare McCarron

as Nurse

1 episodes

Ian Hart

as William Harrison

1 episodes

John Nettleton

as Minister for the Navy

1 episodes

Bill Nighy

as Lord Sandwich

1 episodes

Brian Cox

as Lord Morton

1 episodes

Nigel Davenport

as Sir Charles Pelham

1 episodes

Liam Jennings

as Young William

1 episodes

John Leeson

as BBC Producer

1 episodes

Joe Williams

as Cecil Gould

1 episodes

Geoffrey Hutchings

as Estate Manager

1 episodes

Nick Reding

as Captain Campbell

1 episodes

John Wood

as Edmund Halley

1 episodes

Peter Penry-Jones

as Surgeon

1 episodes

Charles Edwards

as Lt. Seward

1 episodes

David Wood

as Ditton

1 episodes

Clive Francis

as Captain Digges

1 episodes

Mark Tandy

as Whiston

1 episodes

Stephen Fry

as Sir Kenelm Digby

1 episodes

Steven Alvey

as Learmouth

1 episodes

Tobias Menzies

as Halley's Secretary

1 episodes

Ben Jones

as Lt. Williams

1 episodes

Gary Waldhorn

as Commodore Forrest

1 episodes

Robert Demeger

as Observatory Porter

1 episodes

Colin McCormack

as Inn Landlord

1 episodes

Sophie Millett

as Dyson's Secretary

1 episodes

Peter Vaughan

as George Graham

1 episodes

Daragh O'Malley

as Captain Bourke

1 episodes

Sarah Badel

as Society Lady

1 episodes

Phil Dix

as Lt. Bandelwine

1 episodes

Frederick Warder

as Bosun

1 episodes

Steve Morphew

as Marine

1 episodes

Stephen Simms

as James Harrison

1 episodes

Frank Finlay

as Admiral Wagner

1 episodes

Sasha Hails

as BBC Researcher

1 episodes

Cliff Parisi

as Lt. Draper

1 episodes

John Normington

as Mr. Greene

1 episodes

Rupert Baker

as Lt. Bertie

1 episodes

Andrew Scott

as John Campbell

1 episodes

Pip Torrens

as Captain Lindsay

1 episodes

John Standing

as Captain Proctor

1 episodes

Frederick Treves

as Governor

1 episodes

Rose Keegan

as Amy

1 episodes

Charles Gray

as Admiral Balchen

1 episodes

Hugh Simon

as Doctor

1 episodes

Trevor Cooper

as Roger Wills

1 episodes

Rebecca Clay

as Observatory Assistant

1 episodes

William Scott-Masson

as Lt. Knorvler

1 episodes

Richard Janes

as Young Assistant

1 episodes

William Thomas

as Arthur Mason

1 episodes

Faith Kent

as Lady Curator

1 episodes

Roger Lloyd Pack

as Captain Man

1 episodes

Lucy Akhurst

as Grace Ingram

1 episodes

Nicholas Rowe

as King George

1 episodes

Ian Burfield

as Jos Killick

1 episodes

Heike Makatsch

as Queen Charlotte

1 episodes

John Quentin

as Dr. Bradley

1 episodes

John Quayle

as Dr. Demainbray

1 episodes

Michael Cochrane

as Solicitor

1 episodes