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
Doctor Who spin-offs was produced by animation company Nelvana in the 1980s, but the series was not produced. CBBC originally expressed an interest in a "Young Doctor Who" series, chronicling the childhood of the Doctor. Russell T Davies vetoed this concept, saying "somehow, the idea of a fourteen-year-old Doctor, on Gallifrey inventing sonic screwdrivers, takes away from the mystery and intrigue of who he is and where he came from,". He instead suggested "The Sarah Jane Adventures" (see above). A further spin-off of "Doctor Who"—"Rose Tyler: Earth Defence", a 90-minute special that could possibly become an annual event—was cancelled by Davies at a