If you liked
Hellsing
|
...then you might like
Kuroshitsuji
|
If you enjoyed the Integra/Alucard dynamic then the Ceil/Sebastian relationship will seem very familiar. They both enjoy a dark element (Hellsing having violent characters and Kuroshitsuji having twisted characters). Side characters provide much of the comic relief in both with Kuroshisuji enjoying much more comedy than Hellsing. The biggest similarity is Alucard and Sebastian. They seem cut from nearly the same mold in terms of character. If you liked one you will for sure like the other. They both chain themselves to humans who clearly need them. They are both very manipulative (even manipulating their masters). And just as it starts to appear they might really have some soul in them they remind you they aren't human they are vampire/demon.
If you liked
Code Geass: Hangyaku no Lelouch
|
...then you might like
Higashi no Eden
|
Both share a mysterious main character who refuses to let the audience in on his secrets. They also include love interest/s that share the same awe for their hero. Both main characters sketch that line between right and wrong without turning you away from them. If you liked the magnitude of one you'll enjoy the scale of the other.