Report: Tennant signs for more 'Doctor Who'

David Tennant will be reprising the role of The Doctor in a fourth season of Doctor Who, according to an article in The Guardian.

The newspaper's 'Media Monkey' column, which contains insider news from the industry, claimed on Monday that "fans will be pleased to learn that a third series with Tennant in the lead role is guaranteed."

Speculation has been rife that the Scottish actor might be leaving the revived show at the end of the third season, which begun last Saturday, or shortly afterwards. The Sun had previously claimed that Full Monty star Robert Carlyle is in line to take over as the Time Lord midway through the fourth season.

Tennant himself has always declined to publically comment on the matter. Since accepting the part, he has won rave reviews for his quirky performance in the wake of Christopher Eccleston's tenure as the Gallifreyan.