 If you liked
Hellsing
|
 ...then you might like
Vampire Knight Guilty
|
Both anime are about vampires. Some vampires wish to do harm and have some sort of evil plan. The main character(s) tries/try to stop them of course. In Vampire Knight Guilty it takes a while for the action to start also because this anime is about more than just the action and bloodshed. It also involves romance and therefor Vampire Knight Guilty is more a shoujo while Hellsing is more a shounen.