Drawing from her creator's pool of recurring names, Martha and her family share the last name "Jones" with many other Russell T Davies-penned characters. Foremost among them are Harriet Jones in "Doctor Who", Ianto Jones and Eugene Jones in "Torchwood", Ianto Jones in "Mine All Mine" and Stuart Allen Jones in "Queer as Folk". Davies states that reusing names (such as Tyler, Smith, Harper, Harkness and Jones) allows him to get a grip of the character on the blank page. In casting Martha, the actress Freema Agyeman was reused from her minor role as Adeola Oshodi, in the Series 2 episode "Army of Ghosts". Acknowledging this, the resemblance of the two characters was touched upon in "Smith and Jones" when Martha makes reference to her deceased cousin, also serving to connect Martha to the larger "Doctor Who" universe.