The McDonalds is a worldwide chain of restaurants owned and created by Ronald McDonald. In the OnyxKing series, first appearing in "Welcome to McDonalds", it is revealed that there is one employee named Mario who worked as cashier after he destroyed Tubby McDonald's delivery car.
The former cashier of McDonalds who is in charge of paying the damage to the delivery car. He later was re-hired just because he wanted money to buy a SNES Classic.