Jessica Chastain
Madeline Elizabeth Sloane

Mark Strong
Rodolfo Vittorio Schmidt

Gugu Mbatha-Raw
Esme Manucharian

Alison Pill
Jane Molloy

Michael Stuhlbarg
Pat Connors

Jake Lacy
Forde

David Wilson Barnes
Daniel Posner

Dylan Baker
Jon O'Neill

Raoul Bhaneja
R.M. Dutton

Chuck Shamata
Bill Sanford

Christine Baranski
Evelyn Sumner

Sam Waterston
George Dupont

John Lithgow
Senator Ronald Sperling

Aaron Hale
Junior Spencer

Al Mukaddam
Ross

Douglas Smith
Alex

Grace Lynn Kung
Lauren

Noah Robbins
Franklin Walsh

Andrew Moodie
Doctor (voice)

Kyle Mac
Moore

Austin Strugnell
O'Hara

Zach Smadu
Ramirez

Ennis Esmer
Brian

Meghann Fahy
Clara Thompson

Lucy Owen
Cynthia Green

Angela Vint
Brenda Patterson

Kevin Jubinville
Senator Wallace

Helen Johns
Lady in White

Anand Rajaram
Dr. Raj Amarasekara / Matthew Kantaria

Murray Furrow
Parr

Courtenay J. Stevens
Larsson

Craig Eldridge
Senator Hank Badgley

Sergio Di Zio
Big Sam

Joe Pingue
Little Sam

Gurdeep Ahluwalia
News Anchor

Michael Cram
Frank McGill

Jack Murray
Buzz Cut Shooter

Alexandra Castillo
Pru Walsh

Doug Murray
Mike Gordon

Greta Onieogou
CKW Junior

David Rosser
Senator at Hearing