Clement Frost, but only because one of my sims dated him for a while, and it didn't end well.
They were boyfriend/girlfriend, and he tended to come visit and swoop her up and kiss her passionately. He also tended to show up at her house in a foul mood and kick over her trash cans.
One night, he invited her out for a date, and when she arrived, she was so happy to see him that she went in for a kiss, and he rebuffed her.
She'd had enough of his shenanigans, so the next day she invited him to a public place and broke up with him. He went ballistic. I still remember his twisted angry face as he glared at her while wearing that blue suit.
He wasn't a jolly person at all, and I have my sims avoid relationships with him.
