- Country: USA
- Genres: Crime, Drama
- Release: 1949-01-29
- Director: Fred C. Brannon
- Writers: Royal K. Cole , Basil Dickey , William Lively , Sol Shor
- Language: English
- Stars: Kirk Alyn , Rosemary La Planche , Roy Barcroft , Carol Forman , James Dale , Bruce Edwards , James Craven , Tristram Coffin , Tom Steele , Tom Steele , Tom Steele , Dale Van Sickel (1907–1977) , Dale Van Sickel (1907–1977) , Dale Van Sickel (1907–1977)
- Runtime: 167 min
- Awards: N/A
- AKA: Federal Agents vs. Underworld, Inc. (United States of America) , Federal Agents vs. Underworld, Inc. (United Kingdom) , Crime Fighters vs. Underworld, Inc. (United States of America) , Federal Agents vs. Underworld, Inc.
- Plot: The female leader of an international crime ring steals a valuable artifact that can give her the power to control men's minds. Federal agents are dispatched to get it back and stop her evil plans.
- IMDB:tt0041352
Federal Agents vs. Underworld, Inc. Cast · · · ALL
Fred C. Brannon
Director
Kirk Alyn
Inspector David Worth
Rosemary La Planche
Laura Keith
Roy Barcroft
Spade Gordon
Carol Forman
Nila
James Dale
Agent Steve Evans
Bruce Edwards
Prof. Paul Williams [Chs. 1-6]
James Craven
Prof. James Clayton [Chs. 1, 10-12]
Dave Anderson
Porter [Ch. 9]