Cyrus Styne

Cyrus Styne aka Cyrus Frankenstein was a protagonist in the series Supernatural.

Biography
Cyrus was a member of the Styne / Frankenstein family, who more frequently killed humans and stole their organs to "physically upgrade". But Cyrus was never involved in it. In contrast to his otherwise malicious family, he was benign, and has hated his family. He wanted to flee, but he feared that they would find and killed him.

He was annoyed by a bully, but has made fun of him. Shortly thereafter, this bully was kidnapped by his family. Cyrus was ordered to torture and kill him, but he refused. It was not until his father threatened to torture and kill him, did he do it reluctantly.

Shortly thereafter his brothers took him with him to devastate the bunker of the Winchester brothers. Cyrus was disgusted by her brutality and tried to prevent her from doing so. But shortly afterwards Dean Winchester came back, and killed the two. When he also wanted to kill Cyrus, he said that he was different from his family, and she would hate, and that Dean did not need to kill him.

But Dean also killed him because he was under the influence of the "Mark of Cain". Castiel was horrified by this act.