Will Smith Jay
Steven Spielberg Executive Producer
Patrick Warburton Agent Tee
Peter Graves Peter Graves
Johnny Knoxville Scrad / Charlie
Artie Malesci Second Unit Director
Rosario Dawson Laura Vasquez
Jack Kehler Ben
Tommy Lee Jones Kay
Nick Cannon MIB Autopsy Agent
Jeremy Howard Bird Guy Alien / Postal Sorting Alien
Tony Shalhoub Jeebs
Karen Klein Rotoscoping Artist
Martha Stewart Martha Stewart
Deborah Rutherford Prosthetic Makeup Artist
Mary Bailey Script Supervisor
Zeke Morales VFX Editor
Bobby Mackston Supervising Dialogue Editor
Lara Flynn Boyle Serleena
William Kruzykowski First Assistant Editor
Maryellen Aviano Extras Casting
Clifford Happy Stunts
Dennis Sands Scoring Mixer
Doug Jones Joey
Steven Weisberg Editor
Derek Mears Mosh Tendrils
Sonny Tipton Dog Poop
Rip Torn Zed
David Cross Newton
Martin Pfefferkorn Homeless Alien Collaborater (uncredited)
Edgardo Simone Orchestrator
Michael Musteric Production Assistant
Mary Stein Bird Lady Alien
François Audouy Assistant Art Director
Michael Jackson Agent M
Anthony Harris Digital Color Timer
Michael Rivkin Man with Dog
Dan Sharp Sound Recordist
David Sosalla Visual Effects Supervisor
Danny Elfman Original Music Composer
Angela M. Catanzaro Assistant Sound Editor
Brian Steele Sharkmouth (uncredited)
Carla Raij Location Manager
Laurie MacDonald Producer
Cydney Cornell Hairstylist
Derek Cecil Repairman Agent
Arlynn Abseck Wardrobe Supervisor
David Slonaker Orchestrator
Bruce Fowler Orchestrator
Michael S. Epley Dolly Grip
Joel McKinnon Miller Agent
Ernie Grunwald Young Postal Employee
Frank McEldowney Greensman
David Fogg Compositor
JC Bond Associate Editor
Michael Owens Second Unit Director
Doug Harlocker Property Master
Traci Horie Animation
Kevin Grevioux Pineal Eye
Sheena Duggal Visual Effects Supervisor
Walter F. Parkes Producer
Pablo Ferro Title Designer
Beate Petruccelli Costume Supervisor
John Andrew Berton Jr. Visual Effects Supervisor, Split Alien Guy
Lenny Venito New York Guy
Barbara Harris ADR Voice Casting
Karen Ruth Getchell Production Coordinator
Thomas Rosales Jr. Subway Passenger (uncredited)
Chris Skutch Best Boy Grip
Clay Donahue Fontenot Stunts
Kim Marks Second Unit Director of Photography
Rob Harris Unit Publicist