Dubbed "The Fork Guy" by The Slayer, this vampire had his hand chopped off after upsetting The Master. It was then replaced by a metal claw.
The Claw was killed when Buffy stabbed him.
Pretty strong, and pretty old. Guessing he was part of the order at some point (though probably not one of The Master's personal picks.) He even was able to escape from Buffy and Angel on two seperate fights, which just shows he was pretty skilled.
This guy proves that vampires cannot regrow missing limbs, or at least not easily. The Claw also was the first to show the vampire limited ability to tell something isn't human, something that Angel has also been seen to be able to do.