HARRY Potter stars Daniel Radcliffe and Rupert Grint have both won gongs at the WhatsOnStage Awards.

Award-winning show The Book Of Mormon, by South Park creators Trey Parker and Matt Stone, won best new musical, best actor in a musical, and best supporting actor and actress in a musical.

Radcliffe was named best actor in a play for his role in The Cripple Of Inishmaan.

Grint was named the London newcomer of the year for his West End debut in Mojo.