Paul Jefferies
From Tardis Wiki, the free Doctor Who reference
Paul Jefferies has been the credited sound effects editor on the BBC Wales version Doctor Who for nearly every episode since Rose. He has had a particularly long working relationship with dubbing mixer, Tim Ricketts, with whom he has won five Welsh BAFTAs since 1994. Their work on Midnight earned them not only a Welsh BAFTA, but a prestigious Royal Television Society Award. He has also worked with Ricketts on Toby Whithouse's Being Human.
He was a documentary subject on Doctor Who Confidential in the episodes that accompanied Father's Day and Midnight.
