The cameras are still rolling on "The Kennedys: After Camelot," a sequel of sorts to 2011's "The Kennedys," which aired on Reelz. The new series, which also will air on Reelz, follows the family in the aftermath of JFK's assassination in 1963. Katie Holmes again plays Jackie Kennedy, while Alexander Siddig plays Aristotle Onassis, the Greek shipping magnate who married Jackie in 1968. (Siddig is perhaps best known for playing Dr. Julian Bashir on the TV series "Star Trek: Deep Space Nine.") The cast also includes Brett Donahue as John F. Kennedy Jr., Matthew Perry as Ted Kennedy, and Kristen Hager as Joan Kennedy.