Astrid Peth Who Confidential", Minogue describes Astrid as a "dreamer" and that meeting with the Doctor rekindles Astrid's desire to explore. Later in his book "A Writer's Tale" Davies discussed with co-author Benjamin Cook how he had originally named the character "Peth" in a treatment but it bugged him, he later renamed her to "Astrid" giving the reason that it "...sounds more spacey, more like a futuristing Doctor's companion". Despite Davies stating that the companion in "Voyage of the Damned" was "always going to [be] a one-off...little knowing that it would be Kylie Minogue", he has since stated that he would cast
Astrid Peth Mr Copper (Clive Swift), teleporting with some "Titanic" passengers down to Earth where she and the Doctor meet Wilfred Mott (Bernard Cribbins). Upon their return to the ship, she and the Doctor discover the plan of Max Capricorn (George Costigan) to destroy the "Titanic", its passengers and the nearby people of Earth with his villainous angelic robots, the Host. As they attempt to save the ship, Astrid grows increasingly fond of the Doctor, kissing him as part of what she assures is an "old tradition" on Sto. In the episode's climax, Astrid sacrifices herself to save the Doctor from Capricorn