Jemaine Clement

Boris The Animal

Bill Hader

Andy Warhol

Steven Spielberg

Executive Producer

Emma Thompson

Agent O

Keone Young

Mr. Wu

Josh Brolin

Young Agent K

Will Smith

Agent J

Alice Eve

Young Agent O

Michael Stuhlbarg

Griffin

Nicole Scherzinger

Boris's Girlfriend

Michael Chernus

Jeffrey Price

Barry Sonnenfeld

Director

Tommy Lee Jones

Agent K

G. Mac Brown

Executive Producer

Mike Colter

Colonel

David Rasche

Agent X

Jack A. O'Connell

1969 MIB HQ Guard

Cayen Martin

Colonel's Son

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

Alexandra O'Hara

Mom