Agent J (usually called J), born James Darrell Edwards III, is one of the two protagonists of the Men in Black film series.

His father, United States Army Colonel James Darrell Edwards Jr, was working security at Kennedy Space Center for the Apollo 11 launch, when he was murdered by the alien Boris the Animal after assisting Agent K in stopping a chain of events that would have led to K's death and a large-scale invasion of Earth forty years later.

Agent J's Men in Black career starts out when, as Officer Edwards III, he runs down a swift, wall-climbing alien on foot.

During his short period of termination in the episode “The J Is For James Syndrome”, it is shown that J lived with an aunt of his named Rose, who’s known for making meatloaf for herself and her nephew during dinner.

At some point between the first and second film, L goes back to her morgue career, and J has gained a reputation for neuralyzing all of her successors for, in his opinion, unsuitability to work at Men in Black.

At the beginning of the film, he neuralyzes his new partner Agent T because he forces T to admit that he joined the agency to be a hero, something that is fundamentally impossible in the Men in Black due to the secretive nature of the organization.

J investigates a murder at a local pizza joint committed by Serleena, the Kylothian queen who has arrived to find the Light of Zartha after destroying several planets.

The duo discovers the light is Laura, heir to the throne of Zartha (implied to be K's daughter due to his relationship with her mother) and J reluctantly allows her to fulfill her destiny as he and K finally destroy Serleena for good.

J then traveled back to 1969, where he meets the younger K. To keep the present unchanged by Boris's interference, J advises K to kill the Boglodite instead of arresting him as in the original timeline.

[3] ^ Chronological mistake: In Men in Black (1997 film) while Kay is deleting his identity, his date of birth is shown as October 19, 1969.