Diretor/a
Charles Flynn
DIRETOR/A
Michael Weigall
Peter Jones
Elenco (na ordem dos créditos)
Arthur C. Clarke
Self - Presenter
Gordon Honeycombe
Narrator
Alex Campbell
Self
Remy Van Lierde
Arne Eggebrecht
Bob Gimlin
Anna Mitchell-Hedges
Kenneth Arnold
Grover Krantz
Ian Redmond
Emily Gale
Evelyn Murdoch
Gerald Hawkins
Robert Nathan
Robert Rines
John Cock
Jessie Roestenberg
Matthew Burke
Lakhpa Domani
Paul LeBlond
David Thackray
Daniel Murray
Roy Mackal
Archie Tom
Stuart Piggott
Myra Shackley
Frederick Aldrich
Desmond Doig
Elmire Roy
Clara Greenlee
Lester Davies
John Sibert
Harold Gale
Khunjo Chumbi
John Andrews
Peter Boyce
Stewart McDonald
Graham Miller
Ken Cooper
Lena Bottriell
James Tuck
Ira Carpenter
Megan Murray
Ian Patey
Richard Brinckerhoff
Himsef
Jnr. Anthony Roy
Roger Jennison
Don Whillans
Aubrey Burl
Eddie Gremillion
Leonid Krinov
Grover Kiggins
James Powell
Gwen Smith
Pierre Bordet
Joseph Gennaro
Michael Ward
Jim Rieger
John Cloudesley Thompson
Mary Taylor
Alexsei Vasilyevich Zolotov
Mike Tyler
Fujio Yasuda
Tim Dinsdale
Ian Wark
Peter MacNab
Alexander Dolgov
Robert Taylor
Andy Holmes
Charles Rankin
Ray Stanford
Joe Alpin
Dwight Carey
Millie Kiggins
Roland Moody
Ian Ralston
Allan Jobbins
Richard Quigly
Michael O'Kelly
Kathy Gamache
Henry C. Courten
George Vinnicombe
Paul Bottriell
Potch Didier
Jean Meldrum
Wilbert W. Cullers
Lee Hansen
Winnie Osborne
Emil Wick
Luis Gomez
N.K. Vereshchagin
Charles Knight
Peter Smith
Bernard Heuvelmans
Derek de Solla Price
ATOR
Wilbert Cullers
Kenneth Carrdus
Jack Hartung
Don Albert
F.G. Wood
Bramwell Holmes
Arlene Gaal
Geoff Swinney
Paul Pugliese
Pauline Holmes
Sylvia Mowday
Butch Hottinger
Larry Gamache
Wiktor Juszczyk
Ivor Newby
Richard Baum
Frank Rieger
Nikolai Vasiliyev
A. Wilson Osborne
Monica Stockley
Jim Woodman