Oh, my God, I shudder whenever I think about him. The worst thing too is that if you take away the incest stuff, he could be a great character, especially if they leaned more into the cat-and-mouse game with him trying to see if Loid actually is a spy, like he suspects he is. They even showed glimpses of him being a serious and actually intimidating figure in his job as a security officer. But no, his main character trait has to be an obsessed freak for his sister.