"Billie and I got chased through the traffic once in a car. You expect paparazzi to do that, but when it's normal people you start to think the world's gone a bit mad."
— On Groupie Brigades
"David was such a good, spooky Doctor. You know, sharp and quirky and extremely serious. And did a lot of running. I always reckoned he could outrun Usain Bolt."
"I think if my eight-year-old self could see me at the Royal Albert Hall winning a prize for playing the Doctor on telly, he would need a stiff shot of Irn-Bru."
— At the 2006 National Television Awards
"They weren't shagging in the TARDIS, because that would be weird."
— On Doctor / Rose
Reminder: You are not Doctor Who's biggest fan because David Tennant is still alive.
— Seen on Tumblr