Director Gets a Cameo
In the scene where Blade and Dr Jenson are driving at speed through the night en-route to the vampire nightclub, in a side alley we are given a brief scene of a male vampire ripping into a woman's throat.
Though it is not listed in the credits, this vampire is played by the movie's director, Stephen Norrington.
Special Effects Creator Gets a Cameo
Go to the scene in Blade when he's in the subway, right after he enters through the secret fridge passage. When he first sees the subway blaze right past him, hit the slow motion key, you'll see the faces of a couple of people. When you see the face of a brown haired man, thats the 3D animator who did all of the movie's special effects.