When disaster hits the Titanic, the Doctor uncovers a threat to the whole human race. Battling alongside aliens, saboteurs, robot Angels and a new friend called Astrid, can he stop the Christmas inferno?
David Tennant
The Doctor
Kylie Minogue
Astrid Peth
Russell Tovey
Midshipman Alonso Frame
Jimmy Vee
Bannakaffalatta
Clive Swift
Mr. Copper
George Costigan
Max Capricorn
Geoffrey Palmer
Captain Hardaker
Gray O'Brien
Rickston Slade
