Director/a
Penny Palmer
DIRECTOR/A
Reparto (por orden de créditos)
Jem Stansfield
Self - Presenter
Bob Cava
Self - AT&T Bell Labs, New Jersey(archiveFootage)
Boris Feigelson
Self - Diamond Scientist(archiveFootage)
Don Huffman
Self - University of Arizona(archiveFootage)
Andy Kaldor
Self - Exxon Research & Engineering(archiveFootage)
Henry Kolm
Self - Massachusetts Institute of Technology(archiveFootage)
Harry Kroto
Self - University of Sussex(archiveFootage)
Jerry Kulcinski
Self - University of Wisconsin-Madison(archiveFootage)
Simon Lawson
Self - Gem Defensive Projects, De Beers
Stephen Lussier
Self - Marketing Director, De Beers(archiveFootage)
Mark Newton
Self - Oxford University(archiveFootage)
Harrison Schmitt
Self(archiveFootage)
Rick Smalley
Self - Rice University, Houston(archiveFootage)
Lindsay Duncan
Self - Narrator(uncredited)(archiveSound)
Steven Mackintosh
Neil Pearson
Ronald Reagan
Self(uncredited)(archiveFootage)
Paul Vaughan
Frank Windsor