Michael GambonJohn Harrison Ian HartWilliam Harrison (Adult) Andrew ScottJohn Campbell Gemma JonesElizabeth Harrison John WoodSir Edmund Halley Anna ChancellorMuriel Gould Samuel WestNevil Maskelyne Jonathan CoyAdm. Sir Cloudsley Shovell Christopher HodsolCapt. Ainsley Liam JenningsWilliam Harrison (Young) Peter VaughanGeorge Graham Nigel DavenportSir Charles Pelham Tim McInnernyChristopher Irwin John StandingCapt. Proctor Peter CartwrightArmy Doctor Stephen FrySir Kenelm Digby Daragh O'MalleyCapt. Bourke Michael CochraneWaddington, Gould's solicitor Tobias MenziesHalley's Secretary Charles EdwardsLt. Seward T. P. McKennaEdmund Burke Barbara Leigh-HuntDodo Gould Peter-Hugo DalyJohn Jefferies John NormingtonMr. Greene Roger Lloyd PackCapt. Man Heike MakatschQueen Charlotte William ThomasArthur Mason Charles SturridgeRegista / Sceneggiatore Antony RootProduttore Esecutivo Selwyn RobertsProduttore / Second Unit Director Pippa CrossProduttore Esecutivo Eileen DissProduction Design Chris LoweProduction Design Peter HannanDirector Of Photography Shirley RussellCostume Design Christine BeveridgeMakeup & Hair Richard PointingCostume Supervisor Helen BarrettMakeup Artist Jeremy WoodheadMakeup Artist 
