"A down on his luck engineer gets involved in an adventure with a mysterious woman and an emerald magnate."
Ryan O'Neal
as Joseph Wiley
Anne Archer
as Holbrook
Omar Sharif
as Meno Argenti
Domingo Ambriz
as Miguel
John Larroquette
as Claude
Philip Stone
as Jochim Kellerman
Miguel Ángel Fuentes
as Herado
Manuel Ojeda
as Lt. Costas
Michael Sheard
as Jaap
Enrique Lucero
as Lucho the Coffee Grower
Tara Fellner
as Kerry, Holbrook's Sister
Sandra Kerns
as Woman at Bar
Raúl Martínez
as General Martinez
Enrique Novi
Delroy White
as Prentis
Maurice Binder
Main Title Designer
Ernest Day
Director
Edward Anhalt
Screenplay
Ray Hassett
Vic Armstrong
Stunt Coordinator
Ray Freeborn
Location Manager
Anthony Simmons
Robert De Laurentiis
Gerald A. Browne
Novel
Lew Grade
Executive Producer
Jack Wiener
Producer
Bill Wyman
Original Music Composer
Gilbert Taylor
Director of Photography
John Jympson
Editor
Roy Walker
Production Design
Alan Tomkins
Art Direction
Leslie Tomkins
Yvonne Blake
Costume Design
John Webber
Makeup Artist
