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
The Doctor (Doctor Who) Ninth Doctor already regenerated and fully stabilised, with no explanation given. In his first appearance in "Rose" (2005), the Doctor looked in a mirror and commented on the size of his ears, suggesting that the regeneration may have happened shortly prior to the episode, or that he has not examined his reflection recently. Some draw the conclusion that the Ninth Doctor's appearances in old photographs, without being accompanied by Rose, may suggest that he had been regenerated for some time, but these appearances could have occurred afterwards. Russell T Davies, writer/producer of the new series, stated in "Doctor Who Magazine"