Cube People are characters that appear in the episode "Gut Grinder." They have bodies made of rectangular shapes and have a small white cube floating above their head. They speak with emotionless robotic-sounding voices. They live inside the Cube Village. The Cube People along with the Soft People and the Spiky People recognized Jake as the Gut Grinder.
The cube people are the first to identify Jake simply by looking at him, rather than by comparison like the Soft People. Their design resembles Ignignokt and Err from Aqua Teen Hunger Force, but in 3-D. They slightly resemble characters from the game Space Invaders.