The ABC crime series RJ Decker introduced a fresh batch of faces in its fourth episode, which aired on March 24, 2026. The episode, titled ‘In Vanity Veritas’, dropped viewers into a messy suburban murder mystery with a surprising list of guest stars joining the regular cast.
Episode 4 follows RJ Decker (Scott Speedman) as he takes a case from a man named Bob who thinks his wife is cheating on him. But the job quickly turns deadly after an explosion and a murder. The episode also spends time on the growing tension between RJ’s ex-wife Catherine (Adelaide Clemens) and his new romantic interest Emi (Jaina Lee Ortiz).
Here is the complete breakdown of every actor who appeared in RJ Decker Episode 4.
Scott Speedman Leads the Episode as the Messy Private Eye
Scott Speedman, known for his work on Grey’s Anatomy and the Underworld movies, plays the title character RJ Decker. His character is a former newspaper photographer who went to prison and now works as a private investigator in South Florida.
In Episode 4, RJ’s client Bob Vernon hires him to follow his wife Louise. RJ thinks he is just looking for proof of an affair. But a gas explosion at a neighbor’s house and a dead body turn the whole case upside down. Speedman brings a tired, sarcastic energy to the role, making RJ feel like a guy who has seen too much but keeps going anyway.
The episode also shows RJ stuck between two women. His ex-wife Catherine questions him about his date with Emi, leading to tense conversations about his past and his choices.
Adelaide Clemens Returns as RJ’s Journalist Ex-Wife
Adelaide Clemens (Rectify, The Great Gatsby) plays Catherine Delacroix, RJ’s former wife who works as a journalist. In Episode 4, Catherine does not hold back her feelings about RJ seeing Emi. She questions Emi directly about her family’s past and the corruption claims surrounding her father.
Catherine still clearly cares about RJ despite their divorce. Her role in the series serves as a moral compass and a reminder of the life RJ lost. Clemens delivers her lines with a sharp edge, making Catherine someone who can cut deep with just a few words.
Bevin Bru Plays the Detective Who Cracks the Case
Bevin Bru (Will Trent, Landman) appears as Detective Melody ‘Mel’ Abreu, a Fort Lauderdale police detective and Catherine’s wife. This creates an unusual setup. RJ works with his ex-wife’s new partner to solve crimes.
In Episode 4, Mel proves she is the smartest person in the room. She discovers the key clue that links the murder of Natalie Howard to a hit-and-run case involving a teenager named Amari. Without Mel’s police work, RJ would have been stuck chasing the wrong leads. Bru plays Mel as calm, collected, and quietly dangerous.
Jaina Lee Ortiz Appears as RJ’s New Benefactor
Jaina Lee Ortiz (Station 19) plays Emilia ‘Emi’ Ochoa, the daughter of a corrupt state senator. Emi has ties to RJ’s past and serves as his financial backer. But the show makes it clear that she could be helping him for her own reasons.
Episode 4 puts Emi in the hot seat. Catherine questions her about her father’s corruption and why she is really hanging around RJ. Ortiz plays Emi with a cool confidence that makes it hard to tell if she is a friend or an enemy.
Kevin Rankin Shows Up as RJ’s Former Cellmate
Kevin Rankin (Breaking Bad, Claws) plays Aloysius ‘Wish’ Aiken, RJ’s former cellmate who now owns a bar. Wish is a loyal friend who gives RJ a place to think and sometimes helps with cases.
In Episode 4, Wish appears in supporting scenes that remind viewers of RJ’s criminal past. Rankin brings a rough charm to the role, making Wish the kind of guy who would hide a body for you but also make a bad joke about it.
Tamera Mowry-Housley Guest Stars as the Suspicious Wife
Tamera Mowry-Housley, known for her role on Sister, Sister, joins the cast in Episode 4 as Louise Vernon. Her character is the wife that Bob thinks is cheating. But as the episode goes on, Louise becomes the main suspect in Natalie Howard’s murder.
Mowry-Housley plays Louise as a woman who is hiding something, but not necessarily murder. By the end of the episode, Louise proves she is innocent, but the damage to her marriage is already done.
Keith Powell Appears as the Desperate Client
Keith Powell (30 Rock) plays Bob Vernon, the client who hires RJ to follow his wife. Bob is a regular guy who lets his jealousy get the best of him. He thinks Louise is having an affair, but the truth is much darker. Powell plays Bob with a nervous energy that makes you feel bad for him, even as he makes bad choices.
Jules Willcox and Michael Broderick Play the Wealthy Couple
Jules Willcox (Bloodline) and Michael Broderick appear as Dawn and Grant Summers, a rich couple connected to the hit-and-run case involving a teenager. They try to cover up their crimes, but the net closes in on them by the end of the episode. Their storyline ties directly into the murder of Natalie Howard, showing how one crime can lead to another.
Donny Boaz and Amy Lynn Tuttle Play the Victim and Her Husband
Donny Boaz (The Young and the Restless) plays Preston Howard, the husband of the murdered woman. Amy Lynn Tuttle plays Natalie Howard, the victim found dead after a gas explosion. Their characters are at the center of the murder mystery, and the episode spends time showing how Preston reacts to his wife’s death.
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Complete List of Supporting Cast in Episode 4
Several other actors filled out the world of Episode 4. Here is the full list of supporting players:
- Melodie Rose Romano as Sofia
- Anthony B. Jenkins as Darius
- Todd Denson as Holden Carter
- Hunter Burke as Clay Gregory
- Calvin Clausell Jr. as Andre Blake
- Jeffrey Hersh as a uniformed police officer
The episode also featured Jillian Barrie in an unnamed role.
Where to Watch RJ Decker Episode 4
RJ Decker airs on ABC. Episode 4, ‘In Vanity Veritas’, originally aired on March 24, 2026. New episodes air on Tuesday nights at 10 p.m. Eastern.
For viewers who missed it, episodes are available to stream on Hulu the day after they air. The show has already been renewed for a second season due to its strong performance with audiences.
The series is inspired by Carl Hiaasen‘s novel Double Whammy and comes from Rob Doherty, the creator of Elementary. With a cast this strong and cases this weird, RJ Decker has found a solid spot in ABC’s lineup.
Also Read: A Good Girl’s Guide to Murder Age Rating: What Parents Need to Know Before Kids Watch
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