 She made her West End debut in 2009, playing Louise in "New Boy" at Trafalgar Studios.Janson is a prolific voice-over artist, and is a regular voice on BBC Three, and her extensive radio credits include Disney's new version of "The Famous Five" and various dramas for BBC Radio 4.She also appears as the Doctor's companion, Amy, in a trilogy of linked "Doctor Who" audio dramas, beginning with "The Judgement of Isskar".