The British Spy Union is a government agency whose mission is not completely shown. Unlike the O.W.C.A., seemingly all its agents are humans and when one agent from the British Spy Union worked with an agent from the O.W.C.A., the British spy was surprised by the animal. The only members who were seen so far were Inspector Initials and Agent Double 0-0. Their only appearance was in "Elementary My Dear Stacy".

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