Chef is a four-letter South Park character who is the school cafeteria cook and a close friend of the main characters. He is known for his jovial manner, soulful singing, and catchphrase 'Hello there, children!' Kyle is another four-letter South Park character who is one of the main protagonists of the show. He is a Jewish boy who often provides the moral voice of the group and is known for his catchphrase 'Oh my God, they killed Kenny!'