"42" is the seventh episode of the third series of British science fiction television series Doctor Who. It was first broadcast on BBC One on 19 May 2007. It was the first episode written by Chris Chibnall, the showrunner and lead writer of Doctor Who from the 11th series to the 2022 specials.

Michelle Danielle Collins is an English actress. She is best known for her role as Cindy Beale in the BBC soap opera EastEnders, and has also appeared as Stella Price in ITV's Coronation Street. Her other notable TV roles include the BBC dramas Real Women (1998–1999), Sunburn (1999–2000) and Two Thousand Acres of Sky (2001–2003).