Doctor Who show, as the story begins anew with each companion and she undergoes more change than the Doctor. The primary companions of the Ninth and Tenth Doctors were Rose Tyler (Billie Piper), Martha Jones (Freema Agyeman), and Donna Noble (Catherine Tate) with Mickey Smith (Noel Clarke) and Jack Harkness (John Barrowman) recurring as secondary companion figures. The Eleventh Doctor became the first to travel with a married couple, Amy Pond (Karen Gillan) and Rory Williams (Arthur Darvill), whilst out-of-sync meetings with River Song (Alex Kingston) and Clara Oswald (Jenna Coleman) provided ongoing story arcs. The tenth series introduced Pearl Mackie as
Utopia (Doctor Who) Other actors returning to the franchise in this episode are Neil Reidman had previously played Tom Braudy in the Eighth Doctor audio drama "Memory Lane" and Robert Forknall, who plays Lord Byron in the Eighth Doctor audio drama "The Company of Friends". Chipo Chung, who played Chantho, would later go on to play the Fortuneteller in "Turn Left". Paul Marc Davis, who played the Futurekind chieftain, also returned to the "Doctor Who" universe, going on to play the role of The Trickster in "The Sarah Jane Adventures" stories "Whatever Happened to Sarah Jane", "The Temptation of Sarah Jane Smith" and