Agent K

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Agent K
Men in Black character
Tommy Lee Jones as Agent K
First appearance	Comic: The Men in Black (1990) Film: Men in Black
Last appearance	Men In Black 3 (2012)
Created by	Lowell Cunningham
Portrayed by	Tommy Lee Jones Josh Brolin (Young)
Voiced by	Ed O'Ross (Season 1) Gregg Berger (Seasons 2-4)
In-universe information
Nickname	Kay K Mr. K
Species	Human
Gender	Male
Occupation	MIB agent Postal worker (Men in Black II)
Nationality	American
Birth name	Kevin Brown

Agent K (usually called Kay), born Kevin Cunningham Brown, is a fictional character and one of the two main protagonists of the Men in Black franchise (the other being Agent J). Kay is portrayed by Tommy Lee Jones in the three films, with Josh Brolin portraying his younger self in the third film, and voiced by Ed O'Ross and Gregg Berger in the animated series. The film's trading card series and Men in Black: The Game give K's full name as Kevin Cunningham, a nod to Lowell Cunningham, the creator of the comic.