principal boy
From Longman Dictionary of Contemporary EnglishRelated topics: Theatreprincipal boyˌprincipal ˈboy noun [countable] British EnglishAPT the main male character in a pantomime, usually played by a young womanExamples from the Corpusprincipal boy• John heard Cissie Iris, the elder girl, singing a song with the principal boy from the circle during the show.