What actors and actresses appeared in The Stage Door - 1950?

The film "Stage Door" you're referring to was released in 1937, not 1950.

Here are the main actors and actresses who appeared in the 1937 film "Stage Door":

* Katharine Hepburn as Terry Randall

* Ginger Rogers as Kay Hamilton

* Adolphe Menjou as Mr. Dodd

* Andrea Leeds as Jean Maitland

* Gail Patrick as Linda Shaw

* Ann Miller as "The Duchess"

* Lucille Ball as "The Actress"

* Eve Arden as "The Comedienne"

* Constance Collier as "The Star"

* Jack Carson as "The Producer"

* Robert Cummings as David

* Franklin Pangborn as the Broadway columnist

If you're looking for information about a different film with a similar title, please clarify and I can help further.