<P> In the credits, it is explained that Joseph Kennedy Sr. died soon after the incident, Gargan became estranged from the family, and Ted Kennedy served in the U.S. Senate for forty years . </P> <Ul> <Li> Jason Clarke as Ted Kennedy </Li> <Li> Kate Mara as Mary Jo Kopechne </Li> <Li> Ed Helms as Joe Gargan </Li> <Li> Bruce Dern as Joseph P. Kennedy Sr . </Li> <Li> Jim Gaffigan as Paul F. Markham </Li> <Li> Taylor Nichols as Ted Sorensen </Li> <Li> Clancy Brown as Robert McNamara </Li> <Li> Olivia Thirlby as Rachel Schiff </Li> <Li> Lexie Roth as Nance Lyons </Li> <Li> John Fiore as Chief Arena </Li> <Li> Vince Tycer as David Burke </Li> <Li> Andria Blackman as Joan Bennett Kennedy </Li> <Li> Tamara Hickey as Marilyn Richards </Li> <Li> Alison Wachtler as Liz Trotta </Li> <Li> Victor Warren as Stephen Edward Smith </Li> <Li> Donald Watson as Dr. Watt </Li> <Li> Matthew Lawler as Dun Gifford </Li> <Li> Angela Hope Smith as Maryellen Lyons </Li> <Li> Brad Wheelwright as sailor </Li> <Li> David De Beck as Sargent Shriver </Li> <Li> Patrick Sheehan as John V. Tunney </Li> </Ul> <Li> Jason Clarke as Ted Kennedy </Li> <Li> Kate Mara as Mary Jo Kopechne </Li>

Who plays ted kennedy in the new movie chappaquiddick