She joins a starry lineup including Olivia Munn, Emily Mortimer, Jeff Daniels and Dev Patel ('Slumdog Millionaire').
Kennedy, who inherited her nickname "Kick" from her adventurous great-aunt Kathleen, is a Stanford graduate and recent Strasberg Institute acting student. The Sorkin drama marks her TV acting debut.
Her dad, environmental activist RFK Jr., has been romantically linked to 'Curb Your Enthusiasm' star Cheryl Hines, an industry veteran who has allegedly played a hand in introducing the showbiz newbie to Hollywood producers and casting execs.
As the 'Post' points out, young Kick Kennedy's legacy isn't just in D.C.: Her great-grandfather and legendary family patriarch, Joseph P. Kennedy, co-founded a powerful studio in 1929 during Hollywood's "golden age." RKO Pictures employed the likes of Cary Grant, Fred Astaire and Katharine Hepburn.