Yahya Abdul-Mateen II (Bobby Seale), Sacha Baron Cohen (Abbie Hoffman), Danny Flaherty (John Froines), Joseph Gordon-Levitt (Richard Schultz), Michael Keaton (Ramsey Clark), Frank Langella (Julius Hoffman), John Carroll Lynch (John Dellinger) more..., Eddie Redmayne (Tom Hayden), Noah Robbins (Lee Weiner), Mark Rylance (William Kunstler), Alex Sharp (Rennie Davis), Jeremy Strong (Jerry Rubin), Max Adler (Stan Wojohowski), Ben Shenkman (Leonard Weinglass), Jeffrey Scott Basham (Jack Hoffman), Alice Kremelberg (Bernadine), Kate Miller (Marjorie), Kathleen Garrett (John Mitchell's Secretary), Kelvin Harrison Jr. (Fred Hampton), William Hurt (John Mitchell), J. C. MacKenzie (Thomas Foran), Max Adler (), John Doman (John Mitchell), Mike Geraghty (Det. Sam McGiven), Caitlin Fitzgerald (Daphne), John Quilty (Reporter Jack), Michael A. Dean (Carl Oglesby), Meghan Rafferty (Mrs. Dellinger), Brady Jenness (Daniel Dellinger), Steve Routman (David Stahl), Tiffany Denise Hobbs (Sondra), Juliette Angelo (Actress), Brandon Essig (Abbie's Friend), Alex D. Jennings (Courtroom Activist), Wayne Duvall (Det. Paul DeLuca), Brianna Masyn (Schultz Kid), Jeremy Sumpter (), C.J. Wilson (), Rory Cochrane (Homer), Damian Young ()

Phedon Papamichael (Cinematography), Walter F. Parkes (Executive Producer), Laurie MacDonald (Executive Producer), Alan Baumgarten (Editor), Aaron Sorkin (Screenplay), Shane Valentino (Production Design), Susan Lyall (Costume Designer) more..., Marc Butan (Executive Producer), Marc Platt (Producer), Anthony Katagas (Executive Producer), Tyler Thompson (Producer), Daniel Pemberton (Original Music Composer), Andrew Baseman (Set Decoration), Vincent Grashaw (Co-Executive Producer), Matt Jackson (Producer), Kristie Macosko Krieger (Executive Producer), Nathan J. Busch II (Hair Department Head), Louise McCarthy (Makeup Department Head), Shivani Rawat (Executive Producer), Stuart Besser (Producer), James Rodenhouse (Executive Producer), Nia Vazirani (Executive Producer),