Nimativ is the main antagonist in the Abbott and Costello film Lost In A Harem.  He is the cruel despotic ruler of a fictional Middle Eastern land and uses two hypnotic rings to maintain power.  With Pete and Harvey (Abbott and Costello)'s help, Prince Ramo, the rightful ruler and Nimativ's nephew, regains the throne.  Nimativ is then hypnotized by his own rings into thinking he is a dog.