Southbank

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British actor Peter Capaldi, in costume as Doctor Who, and Pearl Mackie as his new companion Bill Potts, pose with a replica of the TARDIS, to promote the new Doctor Who TV series on the Southbank in London, Wednesday April 12, 2017. After three seasons of zooming through space and time, Peter Capaldi is preparing to hang up his sonic screwdriver and depart "Doctor Who." (Yui Mok/PA via AP)