In case some of you are too lazy to use the search or tags, here are last year's Castlevania monster related posts.
Restless Spirit (Castlevania/Gauntlet style ghost)
Robber Bat (not Castlevania, but could work for it)
Grim Reaper (Classic and 3E stats)
And a map of the CV version of Transylvania for a campaign I never got off the ground.