Catherine Tate is to play Doctor Who's new companion, reprising her role from the 2006 Christmas special, the BBC has announced. She will join David Tennant for the complete 13-week run of the new series of Doctor Who, which is due to begin filming in Cardiff later this month.
Freema Agyeman, who played the Doctor's companion Martha Jones in the third series, will return mid-series.
Kylie Minogue will be starring in this year's Christmas special.
Tate will be returning to her role as Donna, the runaway bride who found herself transported into the Tardis as she prepared for her wedding on Christmas Eve.
