Stars (in credits order)
Robert Webb
Self - Narratorvoice
Jim Al-Khalili
Self
Neil Armstrong
SelfarchiveFootage
David Attenborough
Johnny Ball
Colin Blakemore
Liz Bonnin
Tim Boon
Richard Edwards
Self - SFX magazine
Tim Hunt
Chris Lintott
Patrick Moore
Michael Mosley
Steve Mould
Kim Newman
Kit Pedler
Maggie Philbin
Tony Robinson
Simon Singh
Iain Stewart
Robert Winston
William Woollard
Chris Barrie
Rimmeruncredited,archiveFootage
Craig Charles
Listeruncredited,archiveFootage
David Dixon
Ford Prefectuncredited,archiveFootage
Danny John-Jules
Catuncredited,archiveFootage
Peter Jones
The Bookuncredited,archiveFootage,voice
Simon Jones
Arthur Dentuncredited,archiveFootage
Robert Llewellyn
Krytenuncredited,archiveFootage
Norman Lovett
Hollyuncredited,archiveFootage