할리우드의 황금기였던 1943년, 최고의 몸값을 자랑하던 천재 시나리오 작가 달튼 트럼보는 정치 스캔들에 휘말려 블랙리스트에 오르게 된다. 한 순간에 명예와 부 모든 것을 잃게 된 트럼보는 가족을 지키고 계속 글을 쓰기 위해 가짜 필명으로 활동을 시작하는데…
Bryan Cranston
Dalton Trumbo
Diane Lane
Cleo Trumbo
Helen Mirren
Hedda Hopper
Elle Fanning
Nikola Trumbo
Louis C.K.
Arlen Hird
John Goodman
Frank King
Michael Stuhlbarg
Edward G. Robinson
David James Elliott
John Wayne
Roger Bart
Buddy Ross
Mark Harelik
Ed Muhl
John Getz
Sam Wood
Alan Tudyk
Ian McLellan Hunter
James DuMont
J. Parnell Thomas
Richard Portnow
Louis B. Mayer
Adewale Akinnuoye-Agbaje
Virgil Brooks
Stephen Root
Hymie King
Dean O'Gorman
Kirk Douglas
Garrett Hines
Andrew Hird
Christian Berkel
Otto Preminger
Dan Bakkedahl
Roy Brewer
Toby Nichols
Chris Trumbo (age 6-10) (as Tobias McDowell Nichols)
Himself (archive footage)
Laura Flannery
Party Goer
Madison Wolfe
Niki Trumbo (age 8-11)
Johnny Sneed
Robert Stripling
Dane Rhodes
Reporter
Peter MacKenzie
Robert Kenny
John Neisler
Jury Foreman
Sean Bridgers
Jeff Krandall
Meghan Wolfe
Mitzi Trumbo (age 6-8)
Edward 'Ed' Muhl
Suzanne LaChasse
Showgirl (uncredited)
Rhonda Laizer
Trumbo Friend (uncredited)
Joseph Stalin
Self (archive footage) (uncredited)