Ian Levine
From Tardis Wiki, the free Doctor Who reference
Ian Levine (born 22nd June 1953) has made several contributions to Doctor Who. He composed the theme music for K-9 and Company, contributed to Doctor Who: The Unfolding Text, and was the unofficial continuity consultant for Doctor Who in the 1980s. He was co-producer of Downtime and for a while collaborated with the Doctor Who Restoration Team on various DVD releases of older stories.
Ian Levine has also some more controversial controversial statements regarding the series. One of these is that he claimed credit for writing at least some of Attack of the Cybermen, which has been denied by both Paula Woolsey and Eric Saward.