Hot on the heels of the acclaimed third series, Doctor Who returns for a fourth instalment with a familiar face alongside the Doctor. Award-winning comedienne Catherine Tate returns as the Doctor's new companion, revisiting her role as Donna Noble who featured in the 2006 Christmas special, The Runaway Bride. Martha Jones - who left the Doctor at the end of Series Three to break the unrequited circle of live she felt for him - will also return. Storylines are currently firmly under wraps at the moment but expect more thrilling adventures, scary monsters and a whole host of guest stars in Series Four.

Hot on the heels of the acclaimed third series, Doctor Who returns for a fourth instalment with a familiar face alongside the Doctor