Behind the corroded bars of Penal de San Martín, power isn’t won—it’s clawed from the mud. Gladys “La Borges” Guerra (Ana Rujas), a ruthless inmate with a network built on contraband and coercion, rules her cell block with iron fists and cunning alliances. Enter Sergio Antín (Marcelo Subiotto), the prison’s cynical new administrator, determined to dismantle her empire at any cost. Their explosive collision ignites a brutal power struggle where loyalty is currency and every whisper could be a death sentence.

As La Borges fights to maintain control, Sergio deploys psychological warfare, turning inmates against each other. Amidst the squalor and corruption, desperate women—like the resilient La Zurda (Lorena Vega) and the volatile newcomer Carolina (Carolina Ramírez)—become pawns in a high-stakes game. Secrets fester, betrayals fester deeper, and the line between captor and captive blurs. In this cesspool of survival, everyone’s hands are filthy… but some stains never wash off. Dive into the darkness where hope sinks fast.

In the Mud (En el barro) all actors list

1- Ana Rujas as Gladys “La Borges” Guerra

Ana Rujas (Cardo, Nadie Sabe Nada) embodies the terrifying magnetism of La Borges—a queenpin whose intelligence and brutality are equally unmatched. Rujas crafts a villainess with chilling layers: maternal to her allies, merciless to her foes, and always calculating her next move. Her presence radiates volatile authority, making the prison’s corridors crackle with tension.

Rujas reveals La Borges’ vulnerabilities—her paranoia, her twisted code of honor, and the desperation beneath her iron facade. As Sergio closes in, her struggle isn’t just for power, but for identity in a system designed to crush her. A tour-de-force performance of survival at its most primal.

2- Marcelo Subiotto as Sergio Antín

Argentine powerhouse Marcelo Subiotto (El Marginal, El Reino) delivers icy precision as Sergio Antín, the bureaucrat whose calm demeanor masks a capacity for cruelty. Subiotto portrays Antín not as a cartoon villain, but as a man convinced his ends justify any means—even if it means drowning the prison in chaos. His quiet menace is more terrifying than any shout.

Subiotto explores Antín’s moral decay, showing how the system corrupts even its reformers. His psychological duel with La Borges becomes a dark mirror—two sides of the same coin, each reflecting the other’s ruthlessness. A masterclass in controlled, cerebral antagonism.

3- Carolina Ramírez as Carolina

Colombian star Carolina Ramírez (La Reina del Flow, El Chapo) smolders as Carolina, a fierce new inmate whose arrival disrupts the prison’s fragile hierarchy. Ramírez blends raw aggression with wounded vulnerability, hinting at a violent past that fuels her fight for respect. She’s a wildcard who could ignite revolution… or destruction.

Ramírez crafts Carolina as both threat and victim—a woman weaponized by trauma. Her clashes with La Borges and uneasy alliances with others (like La Zurda) drive the season’s most explosive confrontations, questioning whether redemption exists in hell.

4- Lorena Vega as “La Zurda”

Lorena Vega (El Marginal, El Jardín de Bronce) steals scenes as La Zurda, La Borges’ fiercely loyal lieutenant. Vega infuses her with street-smart wit, unshakable grit, and a left-handed prowess in fights (hence the nickname). She’s the enforcer with a sardonic laugh and hidden depths of loyalty.

Vega reveals La Zurda’s conflicted soul—torn between devotion to La Borges and her own moral lines. As Sergio’s pressure mounts, her loyalty faces agonizing tests, making her the series’ unexpected emotional anchor.

5- Valentina Zenere as [Likely “La Piba” or Newcomer]

Valentina Zenere (Soy Luna, Euphoria-style roles) portrays a pivotal younger inmate (character name TBA). Zenere embodies the vulnerability and dangerous naïveté of youth in a den of wolves—a target for exploitation whose survival hinges on adapting fast or being devoured.

Her character arcs from prey to player, learning the prison’s brutal rules. Zenere captures the tragic loss of innocence, showing how the mud stains even those desperate to stay clean.

6- Santiago Caamaño as Rubén

Santiago Caamaño (El Secreto de Selena, 100 Días para Enamorarnos) plays Rubén, likely a corrupt guard or external contact facilitating La Borges’ operations. Caamaño oozes slippery charm and moral ambiguity—a man profiting from misery, yet strangely sympathetic when the walls close in.

Rubén represents the blurred lines between jailer and jailed. Caamaño’s performance adds tension as he navigates alliances with both La Borges and Antín, always hedging his bets in a game where losers disappear.

7- Justina Bustos as [Hardened Inmate / Antín’s Mole]

Justina Bustos (El Marginal, La Chica que Limpia) brings hardened intensity as a veteran inmate (name TBA). Bustos excels at roles balancing toughness and trauma, suggesting a woman who’s survived decades inside by playing all sides—and may become Antín’s most dangerous weapon against La Borges.

Her character embodies institutionalization—the prison’s rhythms etched into her bones. Bustos crafts a survivor whose allegiance is for sale, but whose scars tell a story of systemic betrayal.

8- Rita Cortese as [Matriarchal Figure / “La Madre”]

Argentine legend Rita Cortese (Carancho, Epitafios) lends gravitas as an older inmate (likely nicknamed “La Madre“). Cortese radiates weary wisdom and quiet authority—a figure respected even by La Borges, who holds generational secrets and acts as the prison’s moral (if compromised) compass.

Her presence grounds the chaos in history. Cortese’s performance hints at the cyclical nature of violence behind bars, offering haunting moments of clarity amidst the despair.

9- Camila Peralta as [Vulnerable Newcomer / Key Pawn]

Camila Peralta (Puerta 7, La Casa del Mar) portrays a fragile newcomer exploited by factions. Peralta evokes raw vulnerability—a character whose victimization becomes a catalyst for rebellion or tragedy, forcing others to confront their humanity (or lack thereof).

Her arc highlights the prison’s crushing dehumanization. Peralta’s performance is a gut punch, reminding viewers that every inmate is someone’s daughter, sister, or mother.