Yves the Caterer
The Caterer is an NPC in The Sims: House Party that can be hired for parties or just when you want him over to help clean the house, refill food tables and the punch bowl. He charges §350 for his visit, and will leave around midnight.
When refilling the buffet tables and punch bowls, he does it magically and does the same with emptying them before he leaves. When they are even slightly lower, he'll refill them to maximum. Children can hire him.
His outfit resembles a chef's outfit; white coat, black and white squared pants with black shoes, and the big white hat. In most language versions, his name is Yves.
He could be Yves Jacquet from The Sims 2: Open for Business.