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
Debbie Chazen
Foon Van Hoff
Clive Rowe
Morvin Van Hoff
Andrew Havill
Chief Steward
Bernard Cribbins
Wilfred Mott
Paul Kasey
The Host
Bruce Lawrence
Engineer
Stefan Davis
Kitchen Hand
Jason Mohammad
Newsreader
Jessica Martin
The Queen (voice)
Johnathon Farrell
Ship's Officer (uncredited)