Dame Gladys Constance Cooper, was an English actress, theatrical manager and producer, whose career spanned seven decades on stage, in films and on television.

The Kit Kat Club at the Playhouse Theatre is a West End theatre in the City of Westminster, located in Northumberland Avenue, near Trafalgar Square, central London. The Theatre was built by F. H. Fowler and Hill with a seating capacity of 1,200. It was rebuilt in 1907 and still retains its original substage machinery. As of November 2021, the theatre has been refurbished and is home to a revival of the musical Cabaret with a seating capacity of 550.