约翰·肯尼迪

John F. Kennedy

饰：Himself

休·艾尼斯沃斯

Hugh Aynesworth

饰：Himself - Reporter, The Dallas Morning News 1960-1966

Gerald Posner

饰：Himself - Author `Case Closed`

Dale K. Myers

饰：Himself - Computer Animator

James P. Hosty

饰：Himself - FBI, 1952-1979

李·哈维·奥斯瓦尔德

Lee Harvey Oswald

饰：Himself

Theodore Sorensen

饰：Himself - Special Counsel to President Kennedy 1961-1963

Nicholas Katzenbach

饰：Himself - Deputy Attorney General, 1962-1965

Abraham Zapruder

饰：Himself

John Connally

饰：Himself

林登·贝恩斯·约翰逊

Lyndon Johnson

饰：Himself

杰克·瓦伦蒂

Jack Valenti

饰：Himself - Aide to President Johnson 1963-1966

Robert Oswald

Robert Oswald

饰：自己

Jim Leavelle

饰：自己

Ruth Paine

Ruth Paine

饰：自己

Robert Dallek

Robert Dallek

饰：自己

John K. Lattimer

饰：自己

Michael Beschloss

饰：自己

Gavin Esler

饰：自己

G. Robert Blakey

饰：自己

Joseph A. Califano

饰：自己

彼得·詹宁斯

Peter Jennings

饰：自己

Oleg Kalugin

Oleg Kalugin

饰：Self - KGB - 1958-1990

小约翰·肯尼迪

John Kennedy Jr.

饰：Self,(archive footage)

菲德尔·卡斯特罗

Fidel Castro

饰：Self,(archive footage)

Marina Oswald

饰：Self,(archive footage)

Priscilla McMillan

饰：Self - Author 'Marina and Lee',(as Priscilla Johnson McMillan)

Jack Ruby

饰：Self,(archive footage)

Breck Wall

Breck Wall

饰：Self - Friend of Jack Ruby

Larry Sturdivan

饰：Self - Ballistics Expert, House Select Committee

凯文·科斯特纳

Kevin Costner

饰：Self,(archive footage)

Jim Garrison

饰：Self,(archive footage)

杰奎琳·李·鲍维尔·肯尼迪·奥纳西斯

Jacqueline Kennedy

饰：Self,(archive footage)

Perry R. Russo

饰：Self,(archive footage)

奥利弗·斯通

Oliver Stone

饰：Self,(archive footage)