The Landrusians are a race of humanoids native to the Alpha Quadrant planet C-111 Beta III.
They worshiped a machine, Landru, created by a philosopher named Landru circa 4286 BC, when war threatened to destroy all life on the planet. Landru created "The Body of Landru", similar to a hive mind. After the machine, Landru, was destroyed, a team of sociologists was left behind to give the culture a "more Human form".