Agent J/Jay is a member of the Men in Black, a secret organization dedicated to protecting Earth from evil alien beings, while also giving shelter to good alien beings. He is armed with a wide variety of energy weapons and the Neuralyzer, a device used to wipe the memory of anyone who witnesses evidence of the existence of either alien beings or the Men in Black.

J/Jay used to be the best officer in the New York Police Department before joining the Men in Black. He's cocky, brash and impulsive, but also has a lot of common sense and is willing to question things other take for granted.

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