Sergeant Mark is the boss of Chris and Swagmaster69696969696 who works in the Retarded Spaghetti Factory. His first appearance was a cameo Guards 'N Retards: The Butt Ninja, where he and made his first major appearance in Guards N' Retards: Pointy Things. He is the son of the Pointy Boob Lady. He was "killed" after a disgruntled employee pops him down, but was somehow revived as seen in Guards N' Retards: Prisoners. He also appears in Guards N' Retards: Swag Party Hostages, he was shot by the unknown robber, but at the ending, he ate a mushroom and was in Mushroom Kingdom.
- Despite his name, Sergeant Mark does not fit the description of a sergeant. A "sergeant" is a low-ranking officer in the police force, army, or marines. Mark is just a high-ranking worker at a spaghetti factory.
- A similar case appears in Admiral Greg's name.
- He has shown to appreciate swagmaster and chris, allowing them to come back in guards n retards swag magic after being fired, but swagmaster shot him, and he likes how they work shown in guards n retards prisoners.
- Mark's model is the "Moonraker Elite" from GoldenEye 007 for the Nintendo 64.
- Sergeant Mark is voice by Wiseguy.