Derek Walker goes by many names; Rex, Apocalypto, Doom-Bringer, etc. His most prestigious title is Numbuh 2012, leader of the Secrecy Partnership of International Espionage Sector of the KND, or SPIE for short.
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Derek Walker goes by many names; Rex, Apocalypto, Doom-Bringer, etc. His most prestigious title is Numbuh 2012, leader of the Secrecy Partnership of International Espionage Sector of the KND, or SPIE for short.
