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The comic book character of Ben Urich was created by Gene Colan and Roger McKenzie who is an American writer of comic books.
Bibbo Bibbowski was created by Marv Wolfman and Jerry Ordway who is an American.
Ben Urich | creator | Roger McKenzie (comic book writer) Roger McKenzie (comic book writer) | nationality | United States Ben Urich | creator | Gene Colan Bibbo Bibbowski | creator | Jerry Ordway Jerry Ordway | nationality | Americans Bibbo Bibbowski | creator | Marv Wolfman