The epic romantic adventure that charts the life of an American outlaw returns for its climactic third season when “Billy the Kid” premieres on MGM+ on September 28, 2025. The series continues its sweeping portrayal of William H. Bonney, from his humble Irish roots to his deadly exploits on the American frontier. Season 3 is poised to delve into the most legendary chapters of his life, exploring the violent aftermath of the Lincoln County War and the relentless pursuit by his former friend, Pat Garrett. This season promises to be a gripping tale of fate, friendship turned to rivalry, and the making of an enduring myth.

Anchoring the series is a stellar cast led by the magnetic Tom Blyth in the titular role. He is joined by Alex Roe as the formidable Pat Garrett, alongside returning series regulars Daniel Webber, Horatio Hirst, and Brendan Fletcher. New faces like Nuria Vega bring fresh dynamics to Billy’s world. With its high-stakes drama, breathtaking landscapes, and deep character exploration, “Billy the Kid” Season 3 is set to deliver a powerful conclusion to this critically acclaimed saga.

Billy the Kid Season 3 official cast reveal

– Tom Blyth as William H. Bonney

Tom Blyth returns to deliver a career-defining performance as the complex and charismatic William H. Bonney, better known as Billy the Kid. Blyth has masterfully charted Billy’s journey from a wide-eyed immigrant to a skilled cowboy, and finally into the hardened outlaw whose name strikes fear across the territory. In Season 3, Blyth will face his greatest challenges, portraying Billy as a man increasingly trapped by his own legend, grappling with the consequences of his actions and the tightening noose of the law.

Blyth’s portrayal is celebrated for its depth and humanity, avoiding simple outlaw clichés. He captures Billy’s charm, his quick temper, and his fierce loyalty to those he considers family, even as that loyalty leads him into increasingly dangerous territory. As the saga reaches its inevitable conclusion, Blyth’s performance will be the emotional core, exploring the tragic dimensions of a young man whose pursuit of freedom and justice ultimately seals his fate.

– Alex Roe as Pat Garrett

Alex Roe joins the cast in the pivotal role of Pat Garrett, the lawman destined to hunt down his former friend. Roe brings a commanding presence and a sense of grim determination to the character. Garrett is a complex figure in his own right—a man of principle whose path diverges dramatically from Billy’s. Their evolving relationship from acquaintances to hunter and prey will form the central, tragic conflict of the season.

Roe’s task is to create a worthy adversary who is not a villain, but a man bound by duty and his own moral code. His portrayal will explore the internal conflict Garrett faces, tracking down a man he may still respect or even pity. The chemistry and history between Roe and Blyth will be critical in selling this iconic American drama, making their final confrontation profoundly impactful.

– Daniel Webber as Jesse Evans

Daniel Webber reprises his role as Jesse Evans, the ruthless leader of the outlaw gang known as The Boys. Webber excels at portraying unpredictable and menacing characters, and Jesse Evans serves as a dark reflection of what Billy could become—a purely self-interested and violent criminal. Their fraught alliance and rivalry have been a source of constant tension throughout the series.

In Season 3, Evans will likely remain a wild card, a dangerous element in the already volatile New Mexico territory. Webber’s performance ensures that Evans is a formidable threat, embodying the lawless chaos that Billy navigates. Whether as an enemy or a temporary, untrustworthy ally, his presence complicates Billy’s struggle for survival.

The Regulators and Allies

Billy’s story is defined by his alliances, and his band of brothers returns for the final chapter:

• Horatio Hirst as Charlie Bowdre and Brendan Fletcher as George Coe return as loyal members of Billy’s faction. Their characters represent the bonds of friendship and shared cause that define Billy’s inner circle, and their fates are inextricably linked to his.

• Sean Owen Roberts returns as the vicious Bob Olinger, a primary antagonist whose sadistic nature makes him a personal enemy of Billy and a symbol of the corrupt law enforcement he opposes.

• Dakota Daulby as John Beckwith and Shaun Benson as John Riley continue to flesh out the world of Lincoln County, representing the various factions and loyalties that fuel the conflict.

The Lincoln County Civilians

The civilian players in the war also return to see their stories concluded:

• Luke Camilleri is back as Alexander McSween, the idealistic lawyer whose conflict with the Santa Ring sparked the war. His fate is a pivotal moment in Billy’s story.

• Vincent Walsh portrays the formidable Lawrence G. Murphy, the head of the opposing mercantile faction, whose influence continues to loom large over the territory.

Nuria Vega as Dulcinea Del Tobosco
Nuria Vega joins the cast as Dulcinea Del Tobosco, a new character whose name suggests a romantic and significant role in Billy’s life. As his story hurtles toward its end, Dulcinea could represent a final chance at peace, love, and normalcy that remains tantalizingly out of reach. Her presence will add a poignant layer of “what could have been” to Billy’s tragic arc.