Jason Clarke

Ted Kennedy

Kate Mara

Mary Jo Kopechne

Ed Helms

Joseph Gargan

Bruce Dern

Joseph Kennedy

Jim Gaffigan

Paul Markham

Olivia Thirlby

Rachel Schiff

Clancy Brown

Robert McNamara

Taylor Nichols

Ted Sorensen

John Fiore

Chief Arena

Victor Warren

Stephen Smith

David De Beck

Sargent Shriver

Matthew Lawler

Dun Gifford

Thomas Kee

Walter Steele

Andria Blackman

Joan Kennedy

Tim Jackson

Joseph Kopechne

Damien Di Paola

Ray LaRosa

Gary Tanguay

TV Interviewer

Tony Viveiros

Floor Producer

Tamara Hickey

Marilyn Richards

Nancy O'Brien

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