Other titles: Los cuatro desconocidos | Der vierte Mann | De vierde man | Le quatrième homme | Os Quatro Desconhecidos | Politiet jager fire maskerede mænd | El cuarto hombre | Fyra maskerade män | Neljän naamion salaisuus | The Secret Four | O 4os anthropos | Egymillió dolláros zsákmány | Il quarto uomo | アリバイなき男 | O Segredo dos Quatro | Confidential Kansas City | 4 maskerade män | Cetrti clovek | Тайны Канзас-Сити | Kansas City 117 | Poverljivo iz Kazas Sitija
Year Released: 1952
Month released: November
Certification: Australia:PG, Canada:PG, Finland:(Banned), Finland:K-12, Finland:K-16, Germany:16, Italy:T, Norway:12, Portugal:M/12, Spain:7, Sweden:15, United Kingdom:12, United Kingdom:A, United States:Approved, United States:Not Rated, United States:Passed, United States:TV-PG, West Germany:18
Directors: Phil Karlson
Cast: Al Hill, Archie Twitchell, Barry Brooks, Brick Sullivan, Carleton Young, Carlos Rivero, Charles Cane, Charles Sherlock, Charles Sullivan, Chet Brandenburg, Coleen Gray, Dick Gordon, Don House, Don Orlando, Dona Drake, Eddie Foster, Edward Coch, Frank J. Scannell, George D. Wallace, George Dockstader, Harry Hines, Helen Kleeb, House Peters Jr., Howard Negley, Jack Elam, Jack Shea, James Conaty, Jeff York, Joey Ray, John Payne, Kay Wiley, Lee Phelps, Lee Van Cleef, Mario Siletti, Mike Lally, Neville Brand, Orlando Beltran, Paul Dubov, Paul Fierro, Paul Hogan, Paul Kruger, Paul Ravel, Phil Tead, Preston Foster, Ray Bennett, Ric Roman, Roger Moore, Sam Pierce, Sam Scar, Ted Ryan, Tom Dillon, Tom Greenway, Vivi Janiss, William Haade
Producers: Edward Small
Production Companies: Associated Players & Producers
Certification: Australia:PG, Canada:PG, Finland:(Banned), Finland:K-12, Finland:K-16, Germany:16, Italy:T, Norway:12, Portugal:M/12, Spain:7, Sweden:15, United Kingdom:12, United Kingdom:A, United States:Approved, United States:Not Rated, United States:Passed, United States:TV-PG, West Germany:18
Cinematographers: George E. Diskant
Colorization: Black and White
Country: United States
Distributors: Adams Filmi, Alpha Video Distributors, BuckRay TV, Cosmopol-Film, Donau-Film, Film Detective, Finnkino, GoDigital Media Group, GoodTimes Home Video, Image Entertainment, MCA/Universal Home Video, MGM Home Entertainment, New Star, Pave TV, Penteo Films S.L., Reel Media International, Republic Pictures Home Video, Sinister Cinema, Topanga Canyon Films, United American Video, United Artists, Yleisradio (YLE), YouTube
Editors: Buddy Small
Other Companies: International Alliance of Theatrical Stage Employees (IATSE)
Set Decorators: Edward R. Robinson
Sound Department: Fred Lau
Stunts: Gil Perkins