Peter Capaldi announced on BBC Radio 2 that he is stepping down from the lead role in BBC sci-fi series Doctor Who. He said he will leave Doctor Who at the end of the year and felt that it was “time to move on.”

The 58-year-old Glasgow-born star became the 12th actor to play the Doctor in 2013. His casting was announced on 4th August 2013 in a special BBC programme. Capaldi first appeared as the Doctor in a cameo in the 50th anniversary special, “The Day of the Doctor”, before appearing in the 2013 Christmas special, “The Time of the Doctor”.

Capaldi is a lifelong fan of the series; his replacement is expected to be revealed in this year’s Doctor Who Christmas special