Birth -12 Months

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Seeking to unlock the secrets of genetics and genetic mutation, Dr. Nathaniel Essex was a scientist a century ahead of the peers with whom he worked in the 19th century. But when his studies brought him face-to-face with the immortal villain Apocalypse. his studies, and his life, would never be the same! Transformed into something more than a normal man and calling himself Mr. Sinister, Essex has learned much in the last 100 years. Using the X-Men's Cyclops as his prime test subject, Sinister has continued his work on mutants. But Mr. Sinister is never satisfied, and he continues to be a threat to mutants and humans everywhere! Presented here as he looked during the X-Men crossover event Inferno in Uncanny X-Men #240, Mr. Sinister is poised to take over the world! Using his scientific... Less