- Country: USA
- Genres: Comedy, Short
- Release: 1950-11-09
- Director: Jules White
- Writers: Felix Adler
- Language: English
- Stars: Moe Howard , Larry Fine , Shemp Howard , Stanley Blystone , Emil Sitka , Gene Roth , Nanette Bordeaux , Joe Palma , Blackie Whiteford
- Runtime: 16 min
- Awards: N/A
- AKA: Slaphappy Sleuths (United States of America) , Slaphappy Sleuths
- Plot: The stooges are investigators for the Onion Oil company. The company's service stations are being robbed by a gang of crooks, so the boys pose as gas station attendants to capture the bad guys.
- IMDB:tt0042975
Slaphappy Sleuths Cast · · · ALL
Jules White
Director
Moe Howard
Moe
Larry Fine
Larry
Shemp Howard
Shemp
Stanley Blystone
Crook
Emil Sitka
Emil, a Customer
Gene Roth
Fuller Grime
Joe Palma
Crook (uncredited)
Blackie Whiteford
Crook (uncredited)
Nanette Bordeaux
Louise (uncredited)