Longitude

Michael Gambon

— John Harrison

Jeremy Irons

— Rupert Gould

Ian Hart

— William Harrison (Adult)

Andrew Scott

— John Campbell

Bill Nighy

— Lord Sandwich

Gemma Jones

— Elizabeth Harrison

John Wood

— Sir Edmund Halley

Anna Chancellor

— Muriel Gould

Brian Cox

— Lord Morton

Samuel West

— Nevil Maskelyne

Ian McNeice

— Dr. Bliss

Jonathan Coy

— Adm. Sir Cloudsley Shovell

Christopher Hodsol

— Capt. Ainsley

Liam Jennings

— William Harrison (Young)

Peter Vaughan

— George Graham

Nigel Davenport

— Sir Charles Pelham

Tim McInnerny

— Christopher Irwin

John Standing

— Capt. Proctor

Peter Cartwright

— Army Doctor

Stephen Fry

— Sir Kenelm Digby

Daragh O'Malley

— Capt. Bourke

Cliff Parisi

— Lt. Draper

Michael Cochrane

— Waddington, Gould's solicitor

Tobias Menzies

— Halley's Secretary

Charles Edwards

— Lt. Seward

Pip Torrens

— Capt. Lindsay

T. P. McKenna

— Edmund Burke

Barbara Leigh-Hunt

— Dodo Gould

Peter-Hugo Daly

— John Jefferies

John Normington

— Mr. Greene