Jack
Pitch. This was his fault. Pitch would die a tortured death for this.
Jack watched helplessly as Elsa screamed inside of her nightmare prison.
Then he heard her say something that shattered his heart:
"JACK!!! Please don't leave me!"
She was crying and screaming, her eyes were wide open, revealing the hidden pain that swirled in her mind.
"Jack Jack Jack", she screamed.
And with every time she said his name, his heart broke a little more.
He crouched down and placed a hand on the frozen prison, "Don't worry. I'm never leaving you again snowflake."
He stood up, "Pitch! Where are you, you coward?!"
He looked around desperately as he heard laughing.
"YOU WILL PAY FOR WHAT YOU HAVE DONE TO HER!", he screamed.
And Fear stepped from the shadows, to embrace his fate.