Ed Helms

Joseph Gargan

Jason Clarke

Ted Kennedy

Clancy Brown

Robert McNamara

Bruce Dern

Joseph Kennedy

Jim Gaffigan

Paul Markham

John Fiore

Chief Arena

Kate Mara

Mary Jo Kopechne

Dan Mintz

Executive Producer

Taylor Nichols

Ted Sorensen

Mark DeVitre

Executive Producer

Chris Charalambous

Executive Producer

Carolyn Folks

Executive Producer

Jennifer Lucas

Executive Producer

John Curran

Director

Olivia Thirlby

Rachel Schiff

Thomas Kee

Walter Steele

Chris Fenton

Executive Producer

Angela Hope Smith

Maryellen Lyons

Gillian Mariner Gordon

Cricket

Katie Henoch

Suzy

Lexie Roth

Nance Lyons

Vincent Tycer

David Burke

Victor Warren

Stephen Smith

David De Beck

Sargent Shriver

Barry Press

Burke Marshall

Matthew Lawler

Dun Gifford

Beth Petrou

Ann Gargan

Andria Blackman

Joan Kennedy

Donald Watson

Dr. Watt

Walter Driscoll

Dr. Mills

Joe Chase

John Farrar

Taylor Allen

Writer

Andrew Logan

Writer

Mark Borde

Executive Producer

Stephen Schuler

Executive Producer

Tom Duterme

Executive Producer

Ben Rose

Executive Producer

Byron Allen

Executive Producer

Douglas Jones

Executive Producer