Doctor who - Behind the Scenes

Eve Myles initially appeared on Doctor Who as Gwyneth in the 2005 episode The Unquiet Dead. When she was later cast as Gwen Cooper, Russell T Davies denied that the two characters were related, just that they had similar names and the same actress - in fact, he didn't consider the names Gwen and Gwyneth similar. In the fourth season finale, Journey's End The Doctorand Rose Tyler notice the resemblance between Gwen and Gwyneth and Gwen states her family ties dating back to the 19th century