History of Doctor Who the UK in the spring of 2007 and began airing in Canada and the US during the summer of that year. A 2007 Christmas Special "Voyage of the Damned" was broadcast on 25 December 2007 in the UK, featuring Kylie Minogue as a waitress named Astrid. The fourth series aired in the UK in 2008 featuring two companions; Donna Noble, who first appeared in "The Runaway Bride" and Martha Jones, who returned to the series for five episodes of series four. Billie Piper also returned to the show to reprise her original role as Rose Tyler. Following broadcast of the
Astrid Peth by driving Capricorn off a platform with a forklift truck and both appear to fall to their deaths. Later, realising Astrid was still wearing a teleporter bracelet, the Doctor attempts to recall her atoms in an attempt to resurrect her, but there is insufficient power aboard the damaged "Titanic" to do so. Astrid reappears spectral and bewildered, as the Doctor gives her a goodbye kiss before freeing her sentient atoms (described as "stardust") to roam space as energy. In "Journey's End", Davros taunts the Doctor about the countless people who have died for him. A clip from "Voyage of the