David Strathairn

Edward R. Murrow

Patricia Clarkson

Shirley Wershba

George Clooney

Fred Friendly

Jeff Daniels

Sig Mickelson

Robert Downey Jr.

Joe Wershba

Frank Langella

William Paley

Ray Wise

Don Hollenbeck

Robert John Burke

Charlie Mack

Reed Diamond

John Aaron

Tate Donovan

Jesse Zousmer

Grant Heslov

Don Hewitt

Tom McCarthy

Palmer Williams

Matt Ross

Eddie Scott

Rose Abdoo

Mili Lerner

Alex Borstein

Natalie

Peter Jacobson

Jimmy

Robert Knepper

Don Surine

Dianne Reeves

Jazz Singer

Peter Martin

Pianist

Christoph Luty

Bassist

Jeff Hamilton

Drummer

Matt Catingub

Saxophonist

Glenn Morshower

Colonel Anderson

Don Creech

Colonel Jenkins

Helen Slayton-Hughes

Mary

Simon Helberg

CBS Page

JD Cullum

Stage Manager

John Kepley

CBS Lawyer #1

David Paul Christian

CBS Lawyer #2

Joyce Lasley

Make-Up Girl

Bill Blair

TV Studio Crewman (uncredited)

Joseph Dowd

Reporter (uncredited)

Bruna Matsin

Sig Mickelson's Wife (uncredited)

Katharine Phillips Moser

Jesse's Wife (uncredited)

Alexana Thomas

Senator's Wife (uncredited)

Dave Thompson

News Photographer (uncredited)

Rochelle Warner

Speech Wife (uncredited)

Roy Cohn

Self (archive footage) (uncredited)

Dwight D. Eisenhower

Self (archive footage) (uncredited)

Robert F. Kennedy

Self (archive footage) (uncredited)

Liberace

Self (archive footage) (uncredited)

Joseph McCarthy

Self (archive footage) (uncredited)

John L. McClellan

Self (archive footage) (uncredited)

Milo Radulovich

Self (archive footage) (uncredited)

Joseph N. Welch

Self (archive footage) (uncredited)