Kids stuff as Dr Who duoDavid Tennant and Sophie Aldred team up

Former Doctor Who star David Tennant is teaming up with another veteran of the time-travelling show for a new animated children's television programme.

Sophie Aldred, who played Ace alongside Sylvester McCoy as the seventh doctor, will be the voice behind Tree Fu Tom in a new CBeebies series of the same name about the adventures of an eight-year-old boy who is transformed into a hero every time he puts on a magic belt.

Tennant will voice his sidekick, Twigs, in the show which follows the pair's adventures in a magic world called Treetopolis.

CBeebies controller Kay Benbow said: "We have a fantastic cast on this show who work brilliantly as a team. We are delighted to have David on board.

"The physical energy in his performance works so well for animation and his sense of fun and cheeky humour will delight the older CBeebies audience.

"We have many talented actors because the very young deserve the very best." It's about seeking out great performances and offering the best possible quality to our viewers."