Billie Piper played Rose Tyler

New Doctor Who head writer Steven Moffatt says Billie Piper won't return to the series.

Her character Rose Tyler left with a clone of the Time Lord, played by David Tennant, 37, in the fourth series finale.

And Steven, 47, who has taken over from Russell T Davies, 45, reckons it was a smart way to ditch the Doctor's sidekick.

‘You have to hand it to the Doctor for dumping a slightly needy girlfriend by palming her off on a copy of himself,’ he told fans at a sci-fi convention.

‘He tried leaving her in a parallel universe and that didn’t work!’

Billie, 25, who is expecting her first child with husband Laurence Fox, 29, played the Doctor’s assistant in the first 2 series.