A conductor is a person who directs the performance of a composer's score. In this pursuit, they will be most concerned with determining when individual instruments play their parts of the music. Often, but not always, the conductor will also be the orchestrator in cases of orchestral performances.
Marcus Dods was the only conductor so credited on the 1963 version of Doctor Who, for his work on The Aztecs. Nonetheless, some others received the specific credit of "Incidental music composed and conducted by": Norman Kay on The Sensorites, Raymond Jones on The Romans, and Carey Blyton on Doctor Who and the Silurians.
In BBC Wales Doctor Who, conductors were at first only credited on special occasion, as with The End of Time. During the Moffat and Chibnall eras, however, the conductor began to be credited on a more regular basis. As of January 2019[update], the only individuals credited as conductors for the BBC Wales programme were David Temple, Ben Foster, Jeremy Holland-Smith, Alastair King and Alec Roberts. Most were commonly credited for "Music conducted and orchestrated by [them]".
Ben Foster was also the conductor for Doctor Who: A Celebration, the series' first live music event. He also conducted the orchestra for Doctor Who at the Proms, together with Stephen Bell for 2008, alongside Grant Llewellyn for 2010, and on his own in 2013 and the various Doctor Who Symphonic Spectacular events.