Voyage of the Damned (Doctor Who) Who" by the Australian singer and actress Kylie Minogue, who plays the waitress Astrid Peth. Executive producer and writer Russell T Davies described her casting as a "very exceptional case", having written the part of Astrid specifically for Minogue. On its original airdate, "Voyage of the Damned" was watched by 13.31 million viewers, the highest viewing figure for "Doctor Who" since the 1979 serial "City of Death" and still the highest viewership of any episode since the show's revival. It was the second most-watched programme of 2007, beaten only by the episode of "EastEnders" which aired immediately after it. Critical
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