Who's Who Omnibus Vol. 1 by George Perez, John Kalisz. Title Who's Who Omnibus Vol. Author George Perez, John Kalisz. Who s Who was a series that began in 1985 and ran through the 1990s, cataloguing every character, good or evil, in the DC Universe, from Abel to Zyklon and beyond, with copious detail on powers, origins, and other key facets of each character.
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