Bryan Cranston
Dalton Trumbo
Acting
Diane Lane
Cleo Trumbo
Acting
Helen Mirren
Hedda Hopper
Acting
Elle Fanning
Nikola Trumbo
Acting
Louis C.K.
Arlen Hird
Acting
John Goodman
Frank King
Acting
Michael Stuhlbarg
Edward G. Robinson
Acting
David James Elliott
John Wayne
Acting
Roger Bart
Buddy Ross
Acting
Mark Harelik
Ed Muhl
Acting
John Getz
Sam Wood
Acting
Alan Tudyk
Ian McLellan Hunter
Acting
James DuMont
J. Parnell Thomas
Acting
Richard Portnow
Louis B. Mayer
Acting
Adewale Akinnuoye-Agbaje
Virgil Brooks
Acting
Stephen Root
Hymie King
Acting
Mattie Liptak
Chris Trumbo (Age 13-17)
Acting
Dean O'Gorman
Kirk Douglas
Acting
Garrett Hines
Andrew Hird
Acting
Christian Berkel
Otto Preminger
Acting
Dan Bakkedahl
Roy Brewer
Acting
Toby Nichols
Chris Trumbo (age 6-10) (as Tobias McDowell Nichols)
Acting
Dalton Trumbo
Himself (archive footage)
Writing
Laura Flannery
Party Goer
Acting
Madison Wolfe
Niki Trumbo (age 8-11)
Acting
Johnny Sneed
Robert Stripling
Acting
Rio Hackford
Reporter
Acting
Dane Rhodes
Reporter
Acting
Peter MacKenzie
Robert Kenny
Acting
John Neisler
Jury Foreman
Acting
Sean Bridgers
Jeff Krandall
Acting
Meghan Wolfe
Mitzi Trumbo (age 6-8)
Acting
Becca Nicole Preston
Mitzi Trumbo (age 9-12)
Acting
Mark Harelik
Edward 'Ed' Muhl
Acting
Jaclyn Bethany
Starlet (uncredited)
Acting
Kate Kuen
Ethel (uncredited)
Acting
Suzanne LaChasse
Showgirl (uncredited)
Acting
Rhonda Laizer
Trumbo Friend (uncredited)
Acting
Veronica Parks
Showgirl (uncredited)
Acting
Anne Speed
Juror (uncredited)
Acting