Billie Piper will play new companion Rose.
The 21-year old actress has been officially confirmed to play Rose Tyler, it was announced today by Julie Gardner, Head of Drama, BBC Wales.
The former singer who made her acting debut last year in the critically-acclaimed BBC One drama serial Canterbury Tales: The Miller's Tale, will star alongside Christopher Eccleston in the forthcoming 13-part drama series which returns to BBC One early next year.
Julie Gardner says: "Billie is beautiful, funny and intelligent. We needed to find a unique, dynamic partner for Christopher Eccleston, and Billie fits the bill perfectly. She will make an extraordinary Rose Tyler. Doctor Who has his new assistant!"
Piper, who also received critical acclaim for her role in Bella and the Boys, a one-off drama for BBC Two, is currently starring opposite Hollywood actor Orlando Bloom in The Calcium Kid.
"Doctor Who is an iconic show and I am absolutely thrilled to be playing the part of Rose Tyler," says Billie. "I am also looking forward to working with Christopher Eccleston and writer Russell T. Davies."
Executive producer/writer, Russell T Davies adds: "The Doctor's companion is one of the most important and cherished roles in the history of TV drama. I'm delighted that someone of Billie's talent is coming on board the TARDIS, to travel through time and space."