Modulok is a fictional character in the toy line Masters of the Universe by Mattel, one of the best-selling lines of the 1980s.
Packaged as the 'evil beast of a thousand bodies', upon his release Modulok was unique in form among the action figures. He is made up of 22 different pieces which can be locked together to form different shapes, in a Lego-like fashion. The character was conceived as a multi-bodied monster who can reform himself into thousands of different shapes to confuse his enemies. Among the fan community he is generally recognized as being a scientist, given that he is portrayed as such in the line's accompanying cartoon series. He is a member of the Evil Horde, though in some cartoon appearances is seen to work for himself. He is also known for creating Multi-Bot. He is one of the few Horde figures to not wear a Horde bat emblem.