Brian Finch
From Tardis Wiki, the free Doctor Who reference
Brian Finch wrote the original television version of Leviathan but after the original plans for Season 26 were dropped in favour of Trial of a Time Lord, his script was adapted for audio release by his son Paul Finch.
Outside Doctor Who, he has written 150 episodes of Coronation Street, and recieved a BAFTA for writing the ITV drama Goodnight, Mister Tom. He also wrote several early episodes of All Creatures Great and Small, and therefore played a part in making Peter Davison a household name.
He died in June 2007.