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 Who Magazine" promoting "Voyage of the Damned". The shoot paid homage to actress Katy Manning's (who portrayed Jo Grant) famous nude photo shoot with a Dalek. Tenth Doctor actor David Tennant interviewed Minogue about her role as Astrid Peth on BBC Radio 2 in "X-Amining Kylie" first broadcast on 27 November 2007. Lengthier discussion about her involvement in "Voyage of the Damned" was included in the extended repeat of "X-Amining Kylie", entitled "Re-X-Amining Kylie", broadcast on Boxing Day 2007. It was leaked to "The Sun" and other media outlets that Astrid would kiss the Doctor. The episode was seen by