<P> Danny's death continues to haunt the Rayburn family . Wayne Lowry confronts John, claiming to have a tape of John's history that could be used as blackmail against him . John's deputy Marco Diaz continues to question people in relation to Danny's death, including Eric O'Bannon . Meg returns from New York, John runs for Sheriff, and Kevin continues to struggle with his business . Nolan and his mother arrive at the Rayburn house and meet Sally to discuss Danny . Through Nolan and Eve, the Rayburns learn more about Danny's past, including his asking Robert to borrow some money for his restaurant . Robert made him choose between that or his continuing to send money to Eve for Nolan's support . Ozzy, an old friend of Danny's from Miami, has gotten involved with Eve and works with her to appeal Meg's cancellation after her father's death of the payments to Eve for child support of Nolan . John tries to get the tape off Lowry by telling him to turn himself so that the DEA can arrest his contacts and his family will be protected . Lowry ends up about to do it but backs down due to Kevin giving back some of the drugs Danny had . Lowry is killed by the father of one of the victims killed when he blew up a boat containing people they were trafficking . While John runs for Sheriff, Marco gets closer to find Danny's killer . Marco, who used to have a relationship with Meg, grows to resent the Rayburn family for lying and telling contradictory stories . Eric O'Bannon tells Marco he has proof that John killed Danny . Kevin goes to see Marco to tell him that John killed Danny; Marco responds that John, Meg, and Kevin are all going to prison . Kevin murders Marco . </P> <P> Following Diaz's murder, Kevin seeks Roy Gilbert's help to cover up the murder . Gilbert engineers a plan that frames O'Bannon for the murder, but Kevin nearly loses his life in the process . The impending trial creates further rifts within the Rayburn clan; Meg vanishes, Kevin becomes further ensnared in Gilbert's shady machinations, and John is increasingly consumed by guilt for Danny's death . </P> <Ul> <Li> Kyle Chandler as John Rayburn, the second son; a detective and local deputy with the Monroe County sheriff's office </Li> <Li> Ben Mendelsohn as Danny Rayburn, the oldest son and black sheep of the family (main, seasons 1--2; guest, season 3) </Li> <Li> Linda Cardellini as Meg Rayburn, the daughter and youngest sibling; an attorney and the family peacekeeper </Li> <Li> Norbert Leo Butz as Kevin Rayburn, the hot - headed youngest son; he refurbishes boats at Indian Key Channel Marina </Li> <Li> Jacinda Barrett as Diana Rayburn, John's wife; she runs a plant nursery </Li> <Li> Jamie McShane as Eric O'Bannon, Danny's friend and Chelsea's brother; a parolee </Li> <Li> Enrique Murciano as Marco Diaz, Meg's former long - term romantic partner; a detective with the Monroe County sheriff's office and John's partner </Li> <Li> Sam Shepard as Robert Rayburn, the patriarch (main, season 1; guest, season 2) </Li> <Li> Sissy Spacek as Sally Rayburn, the matriarch </Li> <Li> Katie Finneran as Belle Rayburn, Kevin's estranged wife (recurring, season 1; main, seasons 2--3) </Li> <Li> John Leguizamo as Ozzy Delvecchio, a man from Danny's past (seasons 2--3) </Li> <Li> Andrea Riseborough as Evangeline (Eve) Radosevich, the mother of Nolan Rayburn who has unfinished business with the Rayburn family (season 2) </Li> <Li> Chloë Sevigny as Chelsea O'Bannon, Eric's younger sister; a nurse (recurring, seasons 1--2; main, season 3) </Li> </Ul> <Li> Kyle Chandler as John Rayburn, the second son; a detective and local deputy with the Monroe County sheriff's office </Li>

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