- Country: UK
- Genres: Adventure, Crime, Drama, Mystery, Romance
- Release: 1983-10-09
- Director: Tony Wharmby
- Writers: Agatha Christie , Pat Sandys
- Language: English
- Stars: James Warwick , Francesca Annis , Gavan O’Herlihy , Alec McCowen , Honor Blackman , Peter Barkworth , Toria Fuller , Toria Fuller , John Fraser , George Baker , Donald Houston
- Runtime: 115 min
- Awards: N/A
- AKA: Partners in Crime: The Secret Adversary (United Kingdom) , The Secret Adversary , Avversario segreto (Italy) , Agatha Christie: avversario segreto (Italy) , The Secret Adversary (United Kingdom) , O Inimigo Secreto (Brazil) , Unidos frente al delito: El enemigo secreto (Spain) , Monsieur Brown (France, French Republic) , Тайный противник , Agatha Christie's Partners in Crime: The Secret Adversary (Australia) , Тайный противник (Russian Federation) , Agatha Christie - Matrimonio de sabuesos: El misterioso señor Brown (Spain) , Agatha Christie's 'The Secret Adversary' (United Kingdom)
- Plot: Childhood friends Tommy and Tuppence (Prudence) meet in London after having served in World War I. Recently "demobed", short of money, and with no job prospects, they decide to become adventurers for hire. Soon, they are employed by the British Government to locate a secret treaty signed before the war. Bolsheviks, kidnappings, missing persons, and a marriage proposal for Tuppence, keep things moving for The Young Adventurers, Ltd.
- IMDB:tt0084647
The Secret Adversary Cast · · · ALL
Tony Wharmby
Director
Francesca Annis
Tuppence
James Warwick
Tommy
Gavan O’Herlihy
Julius P. Hersheimmer
Alec McCowen
Sir James Peel Edgerton
Honor Blackman
Rita Vandemeyer
Peter Barkworth
Mr. Carter
Toria Fuller
Jane Finn
John Fraser
Kramenin
George Baker
Whittington
Donald Houston
Boris
Joseph Brady
Dr. Hall
Wolf Kahler
The German
Reece Dinsdale
Albert
Peter Lovstrom
Henry
Matthew Scurfield
Conrad
James Walker
First Clerk
Mike Elles
Second Clerk
Gabrielle Blunt
Annie
Roger Ostime
Ritz Receptionist
Nicholas Geake
Watson
Simon Watkins
Man at Astley Priors
Steve Fletcher
Messenger Boy