Amy Adams
Louise Banks

Jeremy Renner
Ian Donnelly

Forest Whitaker
Colonel Weber

Michael Stuhlbarg
Agent Halpern

Mark O'Brien
Captain Marks

Tzi Ma
General Shang

Abigail Pniowsky
8-Year-Old Hannah

Julia Scarlett Dan
12-Year-Old Hannah

Jadyn Malone
6-Year-Old Hannah

Frank Schorpion
Dr. Kettler

Christian Jadah
Private Combs

Andrew Shaver
Environmental Tech

Pat Kiely
Environmental Tech

Sonia Vigneault
Dr. J. Bydwell

Mark Camacho
Richard Riley

Sabrina Reeves
Press Secretary

Julian Casey
Australian Scientist

Larry Day
CIA Officer Dan Ryder

Matthew Willson
Preacher

Ruth Chiang
Chinese Scientist

Russell Yuen
Chinese Scientist

Anana Rydvald
Swedish Scientist

Abdelghafour Elaaziz
African Representative

Abdul Ayoola
Sierra Leone Representative

Daniel Esteban
Venezuelan Representative

Albert Kwan
Chinese Man

Brittany Teo
Student with Smartphone

Joe Cobden
Cryptographer

Lorne Brass
Cryptographer

Genevieve Sirois
Cryptographer

Victor Andres Trelles Turgeon
Science Team Member

Michael Nangreaves
Science Team Member

Reda Guerinik
Communications Operator

Sasha Samar
Communications Operator

Kathleen Stavert
Communications Operator

Kattia Thony
Nurse

Leisa Reid
Nurse

Brent Skagford
Lieutenant

Gurdeep Ahluwalia
Soldier

Shawn Campbell
TV Anchor

Brian Dunstan
TV Anchor

Dan Duran
TV Anchor

John Sanford Moore
TV Anchor

Sangita Patel
TV Anchor

Camille Ross
TV Anchor

Max Walker
TV Anchor

Carmela Nozza Guizzo
4-Year-Old Hannah (uncredited)

Robert D. Morais
Master Sergeant Douglas (uncredited)

Mustafa Haidari
Foreign Correspondent (uncredited)

Philippe Hartmann
Halpern's Deputy Director (uncredited)

Leslie Baker
Middle Aged Woman (uncredited)

Dave Campbell
Soldier (uncredited)

Frank Fiola
Soldier (uncredited)