Sound Effects Boy is one of King Bob's servant. He wears a dark-green jumper and a white shirt. He only appears in "Kindergarten Derby".
Father: Unknown father
Mother: Unknown mother
Friends: TJ Detweiler, Vince LaSSao, Ashley Spinelli, Gretchen Grundler, Mikey Blumberg, Gus Griswald, Randall Weems, Menlo, Miss Finster, Principal Prickly, Miss Grotke, the Ashleys, Scribe Kid, Jordan and Jerome, King Bob and other good Third Street School students
Enemies: Earwin Lawson, Gelman, Conrad Mundy, Greg Skeens, Sue Bob Murphy, Lazy Kid, Chucko Kowalski, Jocko, Buster, Cheay, Koreo and Kurst the Worst
Likes: Working for King Bob and making sound effects at the races
Dislikes: Troublemakers causing trouble (mainly Lawson), being framed by troublemakers and being picked on by any troublemakers (mainly Lawson), letting King Bob down and any troublemakers disrespecting King Bob