I'm confused... why Soowon's father resemble Hak? ╮(￣▽￣)╭

I see...I'm not the only one

I actually thought that that character was Hak's father when he appeared, like he's the spitting image of Hak! but then they called him Prince/Lord Yuhon and I was like, what???? and now I'm entertaining the idea that Hak and Soowon are blood related... ╮(￣▽￣)╭