3. John Barrowman
Adding to our streak of multi-talented British stars is John Barrowman. Famous for his portrayal of the nearly-immortal Captain Jack Harkness on Doctor Who and Torchwood, Barrowmans talents dont stop there. He is prolific on the stage as well as the screen, starring in numerous West End shows including Miss Saigon, The Phantom of the Opera, and Sunset Boulevard. He has released seven of his own albums, and is featured on cast recordings for shows such as Grease and Anything Goes, as well as over a dozen compilation albums of material ranging from Cole Porter to Andrew Lloyd Webber. http://youtu.be/e4mBG17NdVw
(Source: http://www.johnbarrowman.com/biography.shtml)