Why is Clara like the Doctor? Jenna Coleman and Steven Moffat discuss the development of Clara. http://www.youtube.com/watch?v=ZDisGRTbmdA Jenna Coleman on the Sonic Shades: Jenna Coleman talks about the Sonic Shades - the Doctor's wearable technology! http://www.youtube.com/watch?v=qu9M7XxtVec Strictly Come Ghosting: Behind-the-scenes at 'Ghost Camp'! http://www.youtube.com/watch?v=dCNVzHn0P08 ‘Doctor Who’ Series 9 airs Saturdays on BBC America at 9pm.