Colin Teague
From Tardis Wiki, the free Doctor Who reference
Colin Teague (born 1970) has directed several Doctor Who universe stories. He is one of the few directors to work on all three BBC Wales series.
He became widely known amongst BBC Wales personnel, as "Tumblin' Teague", following an incident during the filming of The Sound of Drums; he fell and required brief hospitalization. David Tennant revealed the nickname to the public in commentaries for series 3 episodes.