What actors and actresses appeared in Del can-can al mambo - 1951?

You're likely thinking of the film "The Mating Season" (1951), also known as "Del Can-Can al Mambo" in some regions.

This film stars:

* Gene Kelly as Peter "Pete" Roberts

* Kathryn Grayson as Katherine "Kay" Roberts

* Fred Astaire as Michael "Mike" O'Brien

It's important to note that while the film is known as "Del Can-Can al Mambo" in some areas, this is not the official title. It's a loose translation of the film's original English title, "The Mating Season."