Naoko Mori would reprise her role of Toshiko Sato in the Doctor Who spin-off "Torchwood" (2006). However, unlike her role as a pathologist in Aliens of London, Toshiko is portrayed as a technical expert on Torchwood. This continuity problem was fixed in "Torchwood: Exit Wounds (#2.13)" (2008) when she revealed that she was filling in for Torchwood's doctor Owen Harper, who was hungover.
When the Doctor complains of being slapped by Rose's mother, Rose laughingly remarks, "You're so gay!" This remark has caused some controversy in fan circles, some seeing it as an anti-homosexual slur. Russell T. Davies, who is gay, wrote in an e-mail response that it was the way people talked, and claimed that he was trying to provoke discussion by using the phrase.