Killer Diller is a 1948 American musical comedy race film directed by Josh Binney and released by All American. Academic and comedienne Eddie Tafoya wrote that "Killer Diller is really more concerned with showcasing black talent appearing at Harlem's legendary Apollo Theater than it is with providing audiences with a satisfying story." The movie features The Clark Brothers, Nat King Cole, Moms Mabley, Dusty Fletcher, Butterfly McQueen, the Andy Kirk Orchestra and the Four Congaroos. René J. Hall was the film's arranger.

The Clark Brothers, consisting of Steve and James ("Jimmy"), were an American double act, who achieved success in Britain in the postwar period. They were thought to be the last of the "brothers" acts of tap-dancing's golden age. During their career, they appeared alongside Frank Sinatra and The Beatles, and opened The Sands in Las Vegas. The Clark Brothers also played at Madison Square Gardens and the Apollo Theatre in New York.