Roger Lloyd Pack
From Tardis Wiki, the free Doctor Who reference
Roger Lloyd Pack (born 8th February 1944) played John Lumic in Rise of the Cybermen and The Age of Steel. Outside of Doctor Who, he is probably best, known as Colin "Trigger" Ball in the BBC sitcom Only Fools and Horses and as Barty Crouch, Sr. in Harry Potter and the Goblet of Fire which also featured David Tennant.