Just to be clear, I think nobody is ugly.
absolutely hott are:
Hunter (I think that Victor is hot, although the character is too 'Ken' by his attitude to be as attractive as he could be)
Wakefield (IDK why, but he just is)
JD (kinda hot too in a very unconventional way)
Malcolm (chubby yes, but pretty face and he's cute)
Thomas (very handsome for 53)
Too old/weird to be hot, but not ugly:
Julia (actually, very pretty for 70s)
Karena (she's not that old, but she's average looking imo)
Cole (least attractive, but that's only his mask, actor is actually average at least)
Well, there it goes. It's just my opinion. I know everyone has theirs.