Kay and Jay reunite to provide our best, last and only line of defense against a sinister seductress who levels the toughest challenge yet to the MIB's untarnished mission statement – protecting Earth from the scum of the universe. It's been four years since the alien-seeking agents averted an intergalactic disaster of epic proportions. Now it's a race against the clock as Jay must convince Kay – who not only has absolutely no memory of his time spent with the MIB, but is also the only living person left with the expertise to save the galaxy – to reunite with the MIB before the earth submits to ultimate destruction.
Tommy Lee Jones
Kay
Will Smith
Jay
Rip Torn
Zed
Lara Flynn Boyle
Serleena
Johnny Knoxville
Scrad / Charlie
Rosario Dawson
Laura Vasquez
Tony Shalhoub
Jeebs
Patrick Warburton
Agent Tee
Jack Kehler
Ben
David Cross
Newton
Colombe Jacobsen-Derstine
Hailey
Peter Spellos
Motorman
Michael Rivkin
Man with Dog
Michael Bailey Smith
Creepy
Lenny Venito
New York Guy
Howard Spiegel
New York Guy
Alpheus Merchant
MIB Guard
Jay Johnston
Agent
Joel McKinnon Miller
Agent
Derek Cecil
Repairman Agent
Sean Rouse
MIB Agent
Peter Spruyt
MIB Customs Agent
Kevin Cotteleer
MIB Customs Agent
Marty Belafsky
MIB Customs Agent
Rick Baker
MIB Passport Control Agent
Martha Stewart
Self
Michael Jackson
Agent M
Sid Hillman
Agent Gee
Tom Whitenight
Agent C
Nick Cannon
MIB Autopsy Agent
Andre Blair
Central Park Agent
Jeremy Howard
Bird Guy Alien / Postal Sorting Alien
Mary Stein
Bird Lady Alien
Martin Klebba
Family Child Alien
John Alexander
Jarra / Family Dad Alien
Denise Cheshire
Family Mom / Locker Alien
Ernie Grunwald
Young Postal Employee
Chloe Sonnenfeld
Young Girl at the Post Office
John Andrew Berton Jr.
Split Alien Guy
William E. Jackson
Eye Guy
Doug Jones
Joey
Biz Markie
Rapping Alien
Peter Graves
Peter Graves
Linda Kim
Ambassador Lauranna
Paige Brooks
'Mysteries in History' Lauranna
Stephanie Kemp
Neuralyzed Mother
Barry Sonnenfeld
Neuralyzed Father
Victoria Jones
Neuralyzed Daughter
Michael Garvey
Corn Face
Michael Dahlen
Flesh Balls
Kevin Grevioux
Pineal Eye
Derek Mears
Mosh Tendrils
Sonny Tipton
Dog Poop
John Richardson
Postman
Philip Goodwin
Diner Guy
Tim Blaney
Frank the Pug (voice)
Greg Ballora
Sleeble (voice)
Carl J. Johnson
Gleeble (voice)
Thom Fountain
Neeble (voice)
Brad Abrell
Mannix (voice)
Richard Pearson
Gordy (voice)
Rick Avery
Subway Passenger (uncredited)
John D. Bair
Alien Attack Victim (uncredited
Michael Beardsley
Suspicious Video Store Patron (uncredited)
Brooke Bennett
Neuralyzed Daughter (uncredited)
Michael Buonomo
College Student (uncredited)
Kristin Charney
Family Mom (uncredited)
Ty Copeman
Car and Driver (uncredited)
Patrick Coleman Duncan
'History's Mysteries' Alien (uncredited)
Darrell Foster
MIB Autopsy Agent (uncredited)
Ned Gorman
Cockroach on Sidewalk (voice) (uncredited)
Gene LeBell
Subway Passenger (uncredited)
Pete Macnamara
Man in Black (uncredited)
Drew Massey
Worm Guy (uncredited)
Matthew McGrory
Tall Alien (uncredited)
Christopher Metas
Alien Accountant (uncredited)
Bart Mixon
Alien Puppeteer (uncredited)
Alexandra O'Hara
Diner Waitress (uncredited)
David Patykewich
Bald Kid Alien (uncredited)
Martin Pfefferkorn
Homeless Alien Collaborater (uncredited)
David C. Roehm Sr.
Alien (uncredited)
Leo Rogstad
New Yorker on His Cell (uncredited)
Thomas Rosales Jr.
Subway Passenger (uncredited)
Brandee Sanders
Subway Business Woman (uncredited)
Hannah Sim
Head-Bobbing Alien (uncredited)
Peter Siragusa
Mayor of Grand Central Terminal Locker Aliens (voice) (uncredited)
39% 
45%
