Other titles: Campeón sin victoria | Der Schläger von Chicago | Brutos em Fúria | La jungle des hommes | Kehäkuningas | Agapisa ton kindyno | La giungla del quadrato | 四角いジャングル | Gevaarlijke eerzucht | 10 Segundos de Silêncio | Sista ronden | Bükülmeyen Bilek | La selva de cuatro esquinas
Year Released: 1955
Month released: December
Certification: Finland:K-16, Netherlands:Unrated, Norway:16, Sweden:15, United Kingdom:A, United States:Approved, West Germany:12
Directors: Jerry Hopper
Cast: Albert Cavens, Barney Phillips, Barry Norton, Barry Regan, Bert Spencer, Bill Hickman, Brick Sullivan, Bud Cokes, Buddy Roosevelt, Carlyle Mitchell, Carmen McRae, Charles J. Conrad, Charles Morton, Charles Perry, Charles Sherlock, Clancy Cooper, Clarence Straight, Dan Dowling, Danny Truppi, David Janssen, David Sharpe, Denny Niles, Dick Cherney, Don C. Harvey, Don Clark, Donald Kerr, Duke Green, Edwin Rochelle, Ernest Borgnine, Ernesto Molinari, Frank J. Scannell, Frank Marlowe, Frank Mills, Frank Moran, Frankie Van, Franklyn Farnum, Fred Carson, George Boyce, George Calliga, George DeNormand, George Ford, George Hickman, Gordon Carveth, Hans Moebus, Harold Miller, Heinie Conklin, Helen Gereghty, J. Stewart Taylor, Jack Perrin, Jack Ramstead, Jack Tornek, Jane Howard, Jess Cavin, Jess Kirkpatrick, Jim Backus, Jimmy Cross, Joe Gray, Joe Louis, John Daheim, John George, John Hiestand, John Marley, Joseph Vitale, Kay Stewart, Kenneth Brischof, Leigh Snowden, Leslie Sketchley, Loren Brown, Nan Boardman, Nicky Blair, Noble 'Kid' Chissell, Norman Stevans, Pat Crowley, Paul Bradley, Paul Gustine, Paul Kelly, Phil Bloom, Philo McCullough, Ralph Montgomery, Ralph Volkie, Robert Haines, Robert R. Stephenson, Rodger Terry, Roy Damron, Russ Clark, Steve Wayne, Stuart Wade, Thomas Martin, Tipp McClure, Tony Curtis, Walt Davis, Walter Bacon, Walter J. Ekwert, Wendell Niles, William H. O'Brien
Producers: Albert Zugsmith
Production Companies: Universal International Pictures (UI)
Art Department: Eddie Case
Camera and electrical department: Clifford Stine
Certification: Finland:K-16, Netherlands:Unrated, Norway:16, Sweden:15, United Kingdom:A, United States:Approved, West Germany:12
Cinematographers: George Robinson
Colorization: Black and White
Country: United States
Distributors: Empire Universal Films, Kino Lorber, Rank Film Distributors, Universal Film, Universal Pictures, Universal Pictures Corporation of Far East, Universal Pictures Proprietary, Universal-Film
Editors: Paul Weatherwax
Languages: English
Other Companies: American Cinema Editors (ACE), International Alliance of Theatrical Stage Employees (IATSE), Western Electric
Production Managers: Sergei Petschnikoff
Script and Continuity Department: Luanna S. Poole
Stunts: David Sharpe