New Doctor Who David Tennant has been seeking advice on his love-life from co-star Billie Piper.

The actor has started dating Thunderbirds star Sophia Myles, but is worried about newspapers reporting on his personal life. Luckily Billie, whose split from husband Chris Evans was widely-publicised, has been on hand to offer words of wisdom.

"Billie's a very good person to talk to about this," Tennant told the Daily Star. "She's a veteran of all that."