 The most well known actors to have been born in the Rhondda are Sir Stanley Baker and brothers Donald and Glyn Houston . Baker was born in Ferndale and starred in films such as the The Cruel Sea ( 1953 ) and Richard III ( 1955 ) , though it was as actor / producer of the 1964 film Zulu that his legacy endures . The Houston brothers were both born in Tonypandy , with Donald gaining better success as a film actor , with memorable roles in The Blue Lagoon ( 1949 ) and Ealing 's Dance Hall ( 1950 ) . Glyn Houston acted primarily in British B @-@ Movies , and was better known as a television actor . 
