John Frankenheimer Director Michael Gambon Lyndon Johnson Actor Donald Sutherland Clark Clifford Actor Alec Baldwin Robert McNamara Actor Bruce McGill George Ball Actor James Frain Richard Goodwin Actor Felicity Huffman Lady Bird Johnson Actor Frederic Forrest Gen. Earle G. Wheeler Actor John Aylward Dean Rusk Actor Philip Baker Hall Everett Dirksen Actor Tom Skerritt Gen. William Westmoreland Actor Chris Eigeman Bill Moyers Actor Patricia Kalember Margaret Craig McNamara Actor John Valenti Jack Valenti Actor Gerry Becker Walt Rostow Actor Sarah Paulson Luci Baines Johnson Actor Diana Scarwid Marny Clifford Actor Francis Guinan Nicholas Katzenbach Actor Robert Cicchini Joseph Califano Actor Curtis McClarin Martin Luther King Jr. Actor Gary Sinise George Wallace Actor Albert Hall Roy Wilkins Actor Christian Peppard Pat Nugent Actor Peter Jacobson Adam Yarmolinsky Actor Victor Slezak Norman Morrison Actor Gina-Raye Carter Lynda Bird Johnson Actor Madison Mason John McCone Actor Davis Henry Cpl. McCafferey Actor Brenda Wehle Juanita Roberts Actor Channing Chase Virginia Foisie Rusk Actor