Sophia Jane Myles born 18 March 1980) is an English actress, best known in film for portraying Erika in Underworld (2003), Lady Penelope Creighton-Ward in the live-action Thunderbirds film, Isolde in Tristan & Isolde and Darcy in Transformers: Age of Extinction, and has received critical acclaim for her television work, particularly as Madame de Pompadour in the Doctor Who episode "The Girl in the Fireplace" and Beth Turner in Moonlight.
She grew up in Notting Hill and attended Fox Primary School.
They has been dating for the last couple of months.
Miss Moffett, a 23-year-old single mother, is the fourth Doctor Who colleague Tennant has romanced.
Sunday, November 25 2007, GMTBy Dave West David Tennant has been spotted apparently dating a young blonde woman who works as an assistant on Doctor Who.