Alex Tudor. Possibly one of English Cricket's mysteries.
When I had first seen him in action, he was tearing through Lankan batting in a Test match. He was fast, aggressive, and bruised a few Lankan batsmen in those matches. I heard he was also quite a good swing bowler, but his rather hostile bowling in that phase was quite remarkable, especially when the attack without him was predictable, one-paced and underpowered. Add to that he was a more-than-useful batsman, and would have done well in the lower order (allowing genuine wicketkeepers to play, post-Stewart).
Then came injuries. Then some more injuries. Then this talk about him faking several injuries. He wasn't the same bowler since then. Maybe he didn't have the heart. Or even the body. There was something special about him then, but it must be over now. As someone pointed out about 8 wickets @58, that's hardly match-winning, and he's been pushed back by the likes of Anderson, Harmison, Jones, Broad, Tremlett and Plunkett, so he's way behind in the race.