Molly Wright / Agent M

Tessa Thompson

Agent H

Chris Hemsworth

Pawny

Kumail Nanjiani

Riza Stavros

Rebecca Ferguson

Agent High T

Liam Neeson

Agent O

Emma Thompson

Agent C

Rafe Spall

Alien Twin #1

Laurent Bourgeois

Alien Twin #2

Larry Bourgeois

Vungus / Nasr / Bassam

Kayvan Novak

Luca Brasi

Spencer Wilding

Young Molly

Mandeiya Flory

Molly's Mom

Marcy Harriell

Molly's Dad

Inny Clemons

Men in Black No. 1

Aaron Serotsky

Nerlene

Annie Burkin

Voice of Frank the Pug

Tim Blaney

FBI HR Guy

Matthew Bates

CIA Recruiter

Sartaj Garewal

Guy

Stephen Wight

Worm Guy #1 (voice)

Thom Fountain

Cabbie

Brian Silliman

Worm Guy #2 (voice)

Drew Massey

Jimmy the Alien

John Sousa

Lead MIB Agent

Jeff Kim

MIB Lead Interrogator

Michael Adams

Veteran MIB Agent

Mike Capozzola

Freddie the Alien

Andrew Greenough

Nightclub Waitress

Natasha Culzac

MIB Forensics Agent

David Hartley

Alien Boss

Paul Brennen

Alien Woman / Boss' Wife

Ania Sowinski

Antique Shopkeeper

Stefan Kalipha

Nightclub Bartender

Daniel Scott Smith

Vinent Pirillo

Nightclub Patrons

Kaya Brown Hallam

MIB Security Guard

Vincent Pirillo

Nightclub Patron #2

Beau Fowler

Nightclub Patron #3

Lukas DiSparrow

Viper Room Player

Andy Beckwith

Couple at Eiffel Tower

Romanos Blanco

Couple at Eiffel Tower

Aiste Dirziute

French Salesman

Anatole Taubman

Nervous Forensic Tech

Sorrel Johnson

Proprieter (Charlie)

Paul Smith

Nervous Forensic Tech

Sorel Johnson

The Worm Guys

Andrew Massey

Jellyfish Alien

Viktorija Faith

Clubber

Davina Sitaram

Cuttlefish Alien

Michel Alexandre Gonzalez

Alien on TV Monitor (uncredited)

J.J. Abrams

Clubber

Jacqueline Ramnarine

Horns (uncredited)

Luigi Boccanfuso

Alien Dancer (uncredited)

Elle Black

MIB Agent

Ruth Horrocks

Himself (brazil version)

Sérgio Mallandro

Alien on TV Monitor (uncredited)

Donald Glover

Tech Geek (uncredited)

Hiten Patel

Alien on TV Monitor (uncredited)

Ariana Grande

MIB Scientist

Bern Collaço

Alien on TV Monitor (uncredited)

Elon Musk

MiB Cub

Nasir Jama

Undercover Alien (uncredited)

Dimitri 'Vegas' Thivaios

Alien

Daniel Rennis

Agent M22

Tuncay Gunes

Dancer (uncredited)

Luke Johnson

Human Alien (uncredited)

Rene Costa

Molly's Dad

Adrian Alvarado

Clubkid (uncredited)

Tiago Martins