Minimus P.U. (voiced by the late Len Carlson until his death, and later Dwayne Hill) is the biogenetically-engineered assistant for Maximus I.Q. and a fan favourite. The "P.U." has been stated to stand for "Portable Underling". Minimus can withstand "extremely high" levels of "verbal and physical abuse" from Maximus. Minimus's "swivel-head" feature allows him to switch between his two faces, one being a sycophant, and the other a grumbler. Depending on Minimus' mood, his head will swivel around to the appropriate face with a loud clicking sound; the other face, when not in use, has its eyes closed and is considered dormant. He, like Maximus, is also a liar... two-faced, you could say. Though frequently abused, he remains the top underling of Maximus.