Henry Lincoln
From Tardis Wiki, the free Doctor Who reference
Henry Lincoln (born 1930) and Mervyn Haisman wrote the Doctor Who stories The Abominable Snowmen and The Web of Fear. They stopped writing for Doctor Who after a disagreement with the BBC over who owned the comic-strip rights to characters and races they created.
With Haisman, Lincoln created the character of Brigadier (then Colonel) Alistair Gordon Lethbridge-Stewart.
Away from Doctor Who, Henry Lincoln is best known for his non-fiction book The Holy Blood and the Holy Grail which provided the inspiration for the popular Dan Brown novel The Da Vinci Code.