Simon Taylor
From Tardis Wiki, the free Doctor Who reference
Simon Taylor was the visual effects designer on the Doctor Who television story Paradise Towers. He was also an uncredited visual effects assistant on Full Circle. (INFO: Full Circle)
John Brace and he designed the effects on the unaired pilot of Richard Curtis and Rowan Atkinson's The Black Adder, but both were effectively replaced by Chris Lawson when the project went to series.