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Not to be confused with the Nightmare King from LEGO DREAMZzz. The Nightmare King is the main antagonist of the 1989 Japanese-American animated adventure fantasy film Little Nemo: Adventures in Slumberland. He is the tyrannical and authoritative ruler of the dreaded Nightmare Land. In Japanese, he was voiced by the late Tarō Ishida (who also voiced Count Cagliostro in Lupin III: The Castle of Cagliostro, Bill Sykes in the Japenese dub of Oliver & Company, Teiji Moriya in Detective Conan: The Tim

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