This is so last minute but I can't figure out the third main character. 

He is cold hearted, a killer, only out of his own nature. 

This story will be a supernatural story due to some different inspirations. 

Buttttttt I really need help trying to figure this guy out. His character is set but I need a guy to play the role!

i have a few guys in mind:

Zico, LeeJoon, Yoochun, and Kyuhyun. 

IDK WHO I NEED TO BE THE MAN! 

Does anyone have any other suggestions? 

Wahhh. I need to do this story tonight cuz it's the only time I have this week!