Overview
Skullduggery is a 1970 American adventure film directed by Gordon Douglas produced by Saul David and starring Burt Reynolds, Susan Clark. It is based on the French novel Les Animaux dénaturés (1952) (variously titled in English as You Shall Know Them, Borderline, and The Murder of the Missing Link) by Jean Bruller (writing under the pseudonym "Vercors").
Plot
On an expedition in Papua New Guinea, the Tropis, a tribe of apelike creatures, are being used as slaves by humans. When one of the Tropis is allegedly murdered, the following murder trial centers on the question of whether the Tropis are human or animal.
Cast
Burt Reynolds as Douglas Temple
Susan Clark as Dr. Sybil Greame
Roger C. Carmel as Otto Kreps
Paul Hubschmid as Vancruysen
Chips Rafferty as Father "Pop" Dillingham
Alexander Knox as Buffington
Pat Suzuki as Topazia
Edward Fox as Bruce Spofford
Wilfrid Hyde-White as Eaton
William Marshall as Attorney General
Rhys Williams as Judge Draper
Mort Marshall as Dr. Figgins
Michael St. Clair as Tee Hee Lawrence
Booker Bradshaw as Smoot
John Kimberley as Epstain
James Henry Eldridge as District Officer
Totty Ames as Motel Manager
James Bacon as Commentator
Gilbert Senior as Kauni
Clarence Harris as Siria
Burnal Smith as Chief (as Burnal "Custus" Smith)
John Woodcock as Spigget
Newt Arnold as Inspector Mimms (as Newton D. Arnold)
Wendell Baggett as Reverend Holzapple
Michael Preece as Nayler (as Mike Preece)
Charles Washburn as Papuan
Cliff Bell Jr. as Worker
Alex Gradussov as Russian Delegate
Jamie Alexander as Reporter (as Jim Alexander)
Saul David as Berl Tanen
Bernard Pike as Associate Judge
Eduard Fuchs as Israeli Delegate (as Eddie Fuchs)
Production
From Wikipedia (CC BY-SA 4.0).