WARNING: The following contains SPOILERS for Ozark season 4.Netflix's Ozark season 4 brings back plenty of key cast members and culminates in the deaths of several major characters – a bittersweet finale to the one of the most groundbreaking antihero crime dramas on television. Ozark follows Wendy and Marty Byrde who have become money launderers for the Navarro Cartel, a prominent drug operation out of Mexico. Each successive season of Ozark sees the Byrdes become entrenched deeper and deeper in the cartel's operations. By the end of season 4, several key characters in the cast of Ozark end up dead, and it becomes truly apparent that the Byrdes are the real villains of the show.

Netflix split Ozark's final season in two, debuting the first 7 episodes in January 2022, and the final 7 in April of the same year. In the last season, the writers have kept the core cast of the show small, choosing to focus on the compelling themes and dynamics that the series has developed over the years. Throughout most of Ozark season 4, Marty and Wendy Byrde continue their ongoing struggle — for and against — the Navarro cartel, getting deeper into the pockets of both the cartel and the U.S. government. Here are Ozark season 4's key players.

Related: Ozark Season 4 Part 2 Ending Explained (In Detail)

Jason Bateman as Marty Byrde

Jason Bateman in Ozark Season 2 Netflix

The patriarch of the appropriately named Byrde family (and the entire reason they are involved with the Navarro Cartel in the first place), Marty is a former financial advisor who now owns several businesses in the Ozarks that he uses to launder money for Omar Navarro. Throughout the show, Marty has tried to leave the cartel and the Ozarks so his family can lead a normal life, though the Ozark season 4 ending confirms that the Byrdes are simply destined for so much more. Bateman is primarily known for his comedic roles rather than dramatic turns, and the actor has starred in the iconic sitcom Arrested Development, and notable comedy movies such as Horrible Bosses and Game Night.

Laura Linney as Wendy Byrde

Laura Linney and Jason Bateman in Netflix's Ozark

Laura Linney is Wendy Byrde, the embattled matriarch of the Byrde family. In an effort to protect her family, Wendy delivered her brother Ben to the cartel so he could be killed, and Ozark season 4 deals with the fallout from that decision. As a result, season 4 sees Wendy finally fully embracing her role in their underground enterprise, eventually transforming into arguably the most dangerous criminal in the cast of Ozark. No stranger to intense roles, Laura Linney's storied career spans hit movies like The Truman Show and Mystic River and other television projects like The Big C and Tales of the City.

Related: Ozark Characters Ranked By Their Likability

Skylar Gaertner as Jonah Byrde

Skylar Gaertner as Jonah

Jonah has always been the one who seems to take this family's life of crime in stride, but the death of Jonah's uncle Ben Davis at Wendy's hands proved to challenge Jonah's loyalty to the family. Jonah remains as inquisitive and clever as ever in Ozark season 4. In fact, the very last scenes of Ozark put the spotlight on Jonah, whose final decisions cements the fate of the Byrdes as the show's true villains. Skylar Gaertner also starred in Netflix's Daredevil series as a young Matt Murdock, and also appears in The Ticket and I Smile Back.

Sofia Hublitz as Charlotte Byrde

Charlotte and Marty talking in Ozark season 2.

Initially resistant to her family's move to the Ozarks, Charlotte eventually came around and now finds herself an increasingly crucial cog in the Byrdes' money-laundering machine. As she continues to come into her own, Ozark season 4 saw Charlotte eventually warming up to her parents' criminal activities. In the cast of Ozark, Charlotte and Jonah represent the "normal" life that Marty and Wendy claimed to have been fighting for, though they eventually lost sight of this goal as a family. Hublitz has also starred in movies Ida Red and What Breaks The Ice.

Related: Where To Find The Main Cast Of Ozark On Social Media

Julia Garner as Ruth Langmore

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Julia Garner won two Primetime Emmy Awards for Best Actress for her role as Ozark's Ruth Langmore, once the child of a local crime family. Formerly Marty's most trusted associate, Ozark season 3 saw Ruth confronting Wendy about Ben's death, leading to her quitting her job for the Byrde family. After the death of heroin queenpin Darlene Snell and Ruth's cousing Wyatt at the hands of Javi, Ruth killed Javi and sealed her own fate in the Ozark season 4 ending. Garner may be the most beloved member of the cast of Ozark, but the actor has also garnered acclaim for her turn in The Americans, The Assistant, and Netflix's Inventing Anna.

Related: Ozark: Ruth's Transformation Over The Seasons (In Pictures)

Felix Solis as Omar Navarro

Omar Navarro in a private plane in Ozark.

The fearsome leader of the Navarro Cartel, Omar was the main antagonist of Ozark for most of the show. From the moment Omar had Helen killed and used her blood to baptize Marty and Wendy into the cartel, up to right before Omar was killed another high-ranking cartel member, he has worked closely with the Byrdes in maintaining the Navarro drug empire. A man of few words, great power, and quick action, Omar was the single most terrifying character in the cast of Ozark. Besides Ozark, Solis has starred in The Good Wife, The Family, and Ten Days in the Valley. Solis also played Matthew Garza in The Rookie and The Rookie: Feds.

Jessica Frances Dukes as Maya Miller

Special Agent Maya Miller in casino on phone looking concerned in Ozark

Jessica Frances Dukes returned to the cast of Ozark season 4 as Special Agent Maya Miller, an FBI forensic accountant who was sent to audit the Byrde's casino boat in season 3. An intriguing addition to the regular cast of Ozark, Maya became more entrenched in the Byrde's affairs and has a begrudging respect for Marty's money laundering skills. Ozark season 4 sees Maya and Omar scheming against each other through the Byrdes. Dukes is known for a recurring role in Jessica Jones and appearances in NCIS: New Orleans and New Amsterdam.

Alfonso Herrera as Javi Elizonndro

Javi and Marty on a boat in Ozark.

Ozark season 4 introduces Omar Navarro's volatile nephew Javi Elizonndro Navarro, a high-ranking cartel lieutenant who studied in prestigious universities abroad. Out of the entire cast of Ozark, only Javi is the true wild card. Following the events of Ozark season 3, Javi becomes an integral player in the Navarro cartel as well as the evolution of Marty, Wendy, and Ruth in the Ozarks. Alfonso Herrera has starred in a slew of Spanish language television series and movies, but to American audiences, he is perhaps best known for his role in the Wachowski sisters' Netflix show Sense8.

Verónica Falcón as Camila Elizondro

Camila Elizondo on the phone in Ozark.

Introduced in Ozark season 4, part 2, Camila Elizondro is the mother of Javi. Camila is highly invested in the future of the Navarro cartel. Despite being a latecomer to the series, Camila proves herself to be a worthy player in the criminal underworld. After taking Omar out of the picture, Camila eventually becomes the most powerful member of the Navarro cartel. Verónica Falcón is a Mexican actress famous for her iconic role in Queen of the South, and also appears in the HBO reboot of Perry Mason.

Ozark Season 4 Supporting Cast

cast of Ozark

Lisa Emery as Darlene Snell: Darlene Snell entered into a relationship with Wyatt Langmore at the end of Ozark season 3 and sought to restart her heroin operation. This puts her in direct conflict with the Navarro Cartel when season 4 begins, which ends with Darlene getting killed by Javi. Emery has a vast resumé in both television and film, making appearances in shows like Sex and the City, Damages, Law and Order: SVU, and (like her Ozark co-star), the MCU Netflix show Jessica Jones.

Charlie Tahan as Wyatt Langmore: After entering into a relationship with Darlene, Ruth's cousin Wyatt became more entrenched in the drug trade than ever. Wyatt also helped Darlene raise baby Zeke, before he and Darlene were unceremoniously executed by Javi. Tahan has had recurring roles in Wayward Pines and Castle Rock and he also played Scarecrow in the Gotham television series.

Adam Rothenberg as Mel Sattem: Ozark season 4's most mysterious new character, Adam Rothenberg's Mel Sattem is a private investigator and former police officer looking into the disappearance of Helen Pierce, who was murdered by Omar Navarro at the end of season 3. In the Ozark finale, Mel Sattem becomes a pivotal character in the history of the Byrdes. Adam Rothenberg also appears in the period crime mystery Ripper Street, Mad Money, Tennessee, and The Immigrant.

Ozark Season 4 Character Deaths: Every Major Character Who Died

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Ozark season 4 ends with the deaths of Omar Navarro, Ruth Langmore, and Mel Sattem, each marking a key turning point in the future of the Byrdes and the leadership of the Navarro cartel. Orchestrated by Marty, Wendy, and Camila, Omar's death shows that even the great Navarro cartel leader can be outsmarted by the Byrdes, who have also secured the loyalty of Camila as the new cartel boss. Ruth Langmore getting killed by Camila gives the cartel leader a sense of justice for her son Javi's death at Ruth's hands. However, it also proved that Camila is as much of a monster as Javi, as Ruth only killed Javi as revenge for Wyatt's death.

Lastly, with Jonah dealing the killing blow to Mel Sattem in the Ozark finale, it's clear that Jonah is now an unquestionably loyal soldier of the Byrdes. Jonah even shatters the urn containing Ben's ashes when he shoots Mel, implying that he's willing to let go of the past, as long as it keeps the family safe. The Byrdes may have gotten away with it all, complete with their entire family intact, but ultimately, it came at the cost of never again being able to return to a "normal" life.