wel they are all pretty scary but I'll put them in order from "murderer with a bazooka and a chicken head" scary to not really that scary
1.OROCHIMARU *screams with arms in the air and running for dear life then drops dead*
2.Itachi *screams bloody mercy*
3.Kisame *screams and runs(yeah right)*
4.Sasori *RUNNNN*
5.Zabuza *back away slowly*
1. Zabuza (Especially when he is talking about his past and slaughtering everyone. Then he slowly looks up and says "It felt... GOOD!" Scary lol)
2. Sasori (I have a fear of puppets.)
3. Orochimaru (creeper...)
4. Kisame (Meh, sharkeh is cool. )
5. Itachi, (After I saw the later episodes.)
Orochimaru because of his pale white skin, and long dark hair. Imagine being in a dark room, and the lights begin to flicker on and off and you see his face, complete with a smirky grin when lights go on everytime.
Kisame... well, imagine meeting a guy like him in a dark ally. It wouldn't be pleasant.
Same thing with Zabuza. He's maybe even the scariest if you ask me. Imagine seeing the same sight as Gato did when Zabuza charged at him. Seeing Zabuza's face getting deformed like that. Terrifying.
KISAME,,I hate his face,it like shark and I scare w/ this person.If I can meet w/ him,I will pay tsunade,jiraiya,kakashi,kakuzu or madara to kill that shark!huu....