The Rainmaker cast and character guide: Who plays whom in the latest legal drama?

Milo Callaghan as Rudy Baylor in The Rainmaker Season 1 Trailer (Image Via:  Rotten Tomatoes TV, YouTube)
Milo Callaghan as Rudy Baylor in The Rainmaker Season 1 Trailer (Image Via: Paramount Pictures)

The Rainmaker is finally stepping into the courtroom, and the cast list is packed with talent you’ll want to remember and look out for. Releasing on August 15, 2025, this 10-episode courtroom TV show follows a young lawyer named Rudy Baylor as he’s thrown into tense-filled legal battles and personal rivalries. He must deal with them all at the same time.

youtube-cover

Before diving into the legal drama, it’s worth meeting the people who will be at the heart of every case and conflict. So, who’s bringing these characters to life? Here’s a full breakdown of The Rainmaker’s major characters and the actors playing them.


The Rainmaker cast and character guide: Who plays whom in the latest legal drama?

1] John Slattery as Leo F. Drummond

When you think of someone commanding the courtroom, John Slattery sure does fit the bill. Playing the role of senior partner Leo F. Drummond, he’s the face of the powerhouse firm Tinley Britt and the legal nemesis of Rudy Baylor.

"Somewhere In Queens" New York Screening - Source: Getty
"Somewhere In Queens" New York Screening - Source: Getty

A “legendary lion of the courtroom,” as the show describes him, Drummond’s charm makes him a terrifying opponent. Slattery told Variety that stepping into Leo’s shoes meant:

"Balancing charisma with calculated intimidation..."

This was a challenge that he relished.

In The Rainmaker, he’s not just an obstacle for Rudy but also a constant reminder of the system and the power that it holds. Watching Slattery’s Drummond face off against his former pupil promises to be one of The Rainmaker’s most electric dynamics.

He’s known for his roles in: Ant-Man, Captain America: Civil War, Avengers: Endgame, and more.


2] Milo Callaghan as Rudy Baylor

Milo Callaghan steps into the role of Rudy Baylor, bringing in some fresh and new energy to the character. Fresh out of law school, Rudy lands at Tinley Britt only to be fired by Leo on his very first day.

TV Academy's Inaugural Televerse Festival - "The Rainmaker" Premiere Screening And Q&A - Source: Getty
TV Academy's Inaugural Televerse Festival - "The Rainmaker" Premiere Screening And Q&A - Source: Getty

With nowhere else to go, he joins Jocelyn “Bruiser” Stone’s unconventional firm, where the office was once a taco shop.

Callaghan describes Rudy as “idealistic but forced to get scrappy fast” in an interview with TV Insider.

The Rainmaker‘s twist? Rudy’s legal battles are deeply personal, as one of his opponents in court is not just his ex-boss but also his ex-girlfriend’s employer. With conspiracies and a wrongful death case tied to their client’s family, Rudy’s first big case might define his entire career.

Callaghan is known for: Doctor Who and Dune: Prophecy.


3] P.J. Byrne as Deck Shifflet

P.J. Byrne as Deck Shifflet brings a mix of humor, grit, and unconventional tactics. Deck has failed the bar exam more times than he’d like to admit, but what he lacks in credentials, he makes up for in street smarts.

The Entertainment Industry Fights To Keep Productions In Los Angeles - Source: Getty
The Entertainment Industry Fights To Keep Productions In Los Angeles - Source: Getty

Byrne told Variety that Deck is:

"The guy who knows every backdoor in the system, even if it's not exactly in the rulebook."

His loyalty to Bruiser and begrudging respect for Rudy create a chaotic yet effective legal trio. Expect Byrne’s performance to swing between funny moments and sharp instincts in the courtroom.

P.J. Byrne is known for The Wolf of Wall Street and The Boys.


4] Madison Iseman as Sarah Plankmore

Madison Iseman plays Sarah Plankmore, Rudy’s former girlfriend and now a lawyer at Leo Drummond’s firm. Their history adds extra bite to every courtroom encounter.

Los Angeles Premiere Of "Thelma" - Source: Getty
Los Angeles Premiere Of "Thelma" - Source: Getty

In this series, Sarah’s role is bigger and bolder than in the original book or film, offering viewers a sharper look at her ambitions and choices. These choices make her more than just a rival — she’s a wildcard in Rudy’s already complicated case.

Iseman is known for Annabelle Comes Home and Jumanji: Welcome to the Jungle.


5] Lana Parrilla as Jocelyn “Bruiser” Stone

Rudy’s mentor, Lana Parrilla’s Jocelyn “Bruiser” Stone, is not your average lawyer in The Rainmaker. She’s tough and unapologetically unorthodox, running her practice from a converted taco shop.

CCXPMX25 - 2nd Day - Source: Getty
CCXPMX25 - 2nd Day - Source: Getty

Bruiser takes on the cases others won’t touch, and with Rudy on her team, she’s ready to look into a wrongful death that could shake the city’s entire legal foundation.

Parrilla is known for Once Upon a Time and Why Women Kill.


6] Dan Fogler as Melvin Pritcher

A brand-new character for The Rainmaker, Dan Fogler’s Melvin Pritcher is a nurse with knowledge that could crack Rudy’s case wide open.

"A Complete Unknown" - UK Premiere - VIP Arrivals - Source: Getty
"A Complete Unknown" - UK Premiere - VIP Arrivals - Source: Getty

His connection to the hospital at the center of the conspiracy makes him both a crucial ally and a potential target. Fogler’s scenes promise to be tense and important.

Fogler is known for The Goldbergs and The Offer.


7] Robyn Cara as Kelly Riker

Robyn Cara portrays Kelly Riker, Rudy’s neighbor, whose abusive marriage may tie into the larger conspiracies at play. Her vulnerability adds a personal layer to Rudy’s journey, and her subplot could connect unexpected dots in the overarching case.

2024 Gotham TV Awards - Source: Getty
2024 Gotham TV Awards - Source: Getty

In The Rainmaker, her storyline is more than a side note — it’s a mirror to the themes of power and control running through the series.

Cara, is known for Life, Bodkin, and The Rising.


The Rainmaker‘s cast doesn’t just fill roles — they absorb the power plays, personal stakes, and gray areas that make legal dramas so addictive to watch.

With a mix of senior actors as well as rising stars, each performance promises to keep audiences at home invested in every twist.

When the gavel falls this August, it’s not just the verdict that will matter — it’s how these characters get there.

Every glance, hesitation, and heated exchange will pull viewers deeper into Rudy Baylor’s fight for justice.

By the final episode, the courtroom may be closed, but the story will linger long after the credits roll.


Stay tuned to SoapCentral for more.

Edited by Ritika Pal