John Simm (Baxter), Philip Glenister (Quinn) & Marc Warren (Rick) also worked together on State of Play (2003) as Cal McCaffrey, DCI William Bell & Dominic Foy respectively.
John Simm, Philip Glenister and Marc Warren also appeared in Life on Mars (2006), Simm and Glenister in lead roles as Sam Tyler and Gene Hunt, respectively, and Warren in support in one episode.