Voyage of the Damned (Doctor Who) opinion about the episode was divided; the writing and Minogue's performance were both praised and criticised. The episode continues from the end of the third series finale "Last of the Time Lords", when the TARDIS collided with the "Titanic". To investigate further, the Doctor runs the TARDIS's self-repair programme and boards the "Titanic", where he discovers that the "ship" is an interstellar cruiser from the planet Sto. Modelled after the Earth ocean liner of the same name, the ship is orbiting present-day Earth to observe "primitive cultures"–specifically, Christmas. He decides to stow away, only telling waitress Astrid Peth (Kylie Minogue)
Companion (Doctor Who) in the Series Four finale "The Stolen Earth" / "Journey's End" (2008), which features a record eight past, present and future companions: Donna is joined by a returning Rose, Martha, Jack, Sarah Jane, and Mickey, while past companion K9 and future companion Wilfred Mott make appearances. This tendency, plus the increase in "one-off" companions like Astrid Peth and Jackson Lake, has further obscured the matter of who is and is not a companion. The Doctor's companions have assumed a variety of roles—involuntary passengers, assistants (particularly Liz Shaw), friends, and fellow adventurers; and, of course, he regularly gains new companions and