Rose (Doctor Who episode) costume of a battered leather jacket was in Davies' original pitch, but the clothing also went with Eccleston's desire not to have clothes dominating his time on the show. The Ninth Doctor's clothes do not dominate him, but rather create a simple silhouette and an "action man" vibe. Billie Piper's casting as Rose Tyler was announced in May 2004. According to executive producer Julie Gardner, former pop star Piper "fits the bill perfectly" as a "unique, dynamic partner for Christopher Eccleston". Davies described Rose as "the ordinary person who stumbles into something extraordinary and finds herself their equal." Camille Coduri
Doomsday (Doctor Who) the alternate universe Pete Tyler, who tells him that after he left the Cybermen were sealed in their factories while humanity decided what to do with them. In the meantime, the Cybermen vanished and the breach began causing unprecedented global warming on the parallel Earth, which the Doctor theorises is the start of the process that will lead to both planets falling into the Void. Pete demands the Doctor seal the breach before his Earth is destroyed. Meanwhile, Rose deduces that she and Mickey were kept alive because their touch can activate the Genesis Ark. Dalek Sec explains that they