Adam Mitchell is a fictional character in the British science fiction television series Doctor Who, played by Bruno Langley. Adam is introduced in the first series of the programme's revival as the second television companion of the Ninth Doctor. However, unlike the Ninth Doctor's primary companion, Rose Tyler, who provided an effective human contrast to the Doctor's centuries-old alien, Adam was created to provide an example of an inept time traveller.

"Dalek" is the sixth episode of the revived first series of the British science fiction television programme Doctor Who. It was first broadcast on BBC One on 30 April 2005. This episode is the first appearance of the Daleks in the 21st-century revival of Doctor Who; it also marks the first appearance of Bruno Langley as companion Adam Mitchell.