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
Voyage of the Damned (Doctor Who) costume. Page rejected a long dress because it was atypical to Minogue; she instead elected for a "cigarette girl" image, similar to a "1950s [...] cinema usherette". Five costumes were made for different scenes and Minogue's stunt doubles, and each part of each costume was made separately to keep Minogue's role secret. After filming, Minogue told Page that the costume was "the most comfortable [she] had worn in years". The episode was primarily written by Russell T Davies after Minogue was cast. Davies described his pitch to Minogue as "busking". The character of Astrid Peth was written for Minogue. Davies