В ролях

• Will Smith — Agent J
• Josh Brolin — Young Agent K
• Tommy Lee Jones — Agent K
• Emma Thompson — Agent O
• Nicole Scherzinger — Boris's Girlfriend
• Alice Eve — Young Agent O
• Michael Chernus — Jeffrey Price
• Keone Young — Mr. Wu
• Mike Colter — Colonel
• Will Arnett — Agent AA
• Clarke Thorell — Prison Guard #1
• Adam Mucci — Prison Guard #2
• Tom McComas — Prison Guard #3
• Douglas Crosby — Prison Guard #4
• Woodie King Jr. — 2012 MIB HQ Guard
• Tobias Segal — 1969 MIB Agent #1
• Jon Shaver — 1969 MIB Agent #2
• Gerritt Vandermeer — 1969 MIB Agent #3
• Valence Thomas — Coney Island Hippie
• Rick Baker — Brain Alien
• Joseph R. Gannascoli — New York Mets Fan #2
• Kevin Townley — Funky 60's Dude
• Stephen Brian Jones — Guru
• Tyler Johnson — Muscle Boy at Happening
• Kati Rediger — Muscle Boy's Girlfriend at Happening
• Victor Joel Ortiz — Air Force MP #1
• Charlie Barnett — Air Force MP #2
• Ian Blackman — Car Theft Victim
• Jeremy Beiler — Hotel Doorman
• Jared Johnston — Neil Armstrong
• Ken Arnold — Buzz Aldrin
• Joel Brady — 1969 Man in Elevator
• Anthony J. Gallo — Four-Armed Alien
• James Martin Kelly — 1969 NYPD Cop #1
• Will McLaughlin — 1969 NYPD Cop #2
• Barry Sonnenfeld — Husband Watching Launch
• Brad Abrell — Worm (voice)
• Tim Blaney — Worm (voice)
• Thom Fountain — Worm (voice)
• Carl J. Johnson — Worm (voice)
• Michael Stuhlbarg — Griffin
• Jemaine Clement — Boris The Animal
• Bill Hader — Andy Warhol
• David Rasche — Agent X
• Lanny Flaherty — Obadiah Price
• Joseph D'Onofrio — New York Mets Fan #1
• David Pittu — Roman The Fabulist
• Lenny Venito — Bowling Ball Head
• Lady Gaga — Alien on TV Monitors