Peter Capaldi, the latest incarnation of "Doctor Who," says he is quitting the lead role in the BBC science fiction series at the end of the year. Capaldi is pictured with co-star Jenna Coleman in this 2014 file photo.
Peter Capaldi, the latest incarnation of "Doctor Who," says he is quitting the lead role in the BBC science fiction series at the end of the year. Capaldi is pictured with co-star Jenna Coleman in this 2014 file photo. Adrian Rogers
Peter Capaldi, the latest incarnation of "Doctor Who," says he is quitting the lead role in the BBC science fiction series at the end of the year. Capaldi is pictured with co-star Jenna Coleman in this 2014 file photo. Adrian Rogers

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