WARNING! This article contains SPOILERS for The Righteous Gemstones' series finale.Baby Billy’sThe Righteous Gemstonesending would have been stronger with the return of a season 2 character, but that actor reunion will still end up happening in Walton Goggins’ action series on Prime Video. Maintaining a long-standing working relationship with Danny McBride, Walton Goggins’ time as Uncle Baby Billy came to a close after six years and four seasons inThe Righteous Gemstones’ series finaleon May 4. After serving as one of the series’ fan-favorite characters,Baby Billy received a fitting, redemptive conclusion in the finale as he chose his wife and children over the prospects of fame.

As heartwarming asBaby Billy’s endingwas, it’s difficult to ignore that his resolution left out a crucial family member.Missing from his series finale story was Macaulay Culkin’s Harmon Freeman, Baby Billy’s estranged son who he abandoned in 1993.The Righteous Gemstonesseason 2 ultimately gave Baby Billy and Harmon’s relationship a significant focus, as Goggins’ character attempted to reconnect with his son and right his wrongs. Despite their reconciliation before season 2’s ending, Baby Billy’s redemption as a father felt incomplete in the series finale without any mention of or reunion with Culkin’sThe Righteous Gemstonescharacter.

The Righteous Gemstones' Walton Goggins & Macaulay Culkin Are Reuniting In Fallout Season 2

Culkin Joined The Cast Of Goggins' Hit Prime Video Sci-Fi Series

Though Macaulay Culkin and Walton Goggins never reunited as father and son inThe Righteous Gemstonesafter their subplot in 2022, the two actors will be co-stars once again in the upcomingFalloutseason 2. Goggins has starred in the main cast ofFalloutas The Ghoul/Cooper Howard since the Prime Video adaptation’s debut, whileCulkin was confirmed in late 2024 to be joining season 2 in an undisclosed role. WhileFalloutseason 2 has officially wrapped production, there’s still no word yet on what exactly Culkin’s role entails.

However, it’s highly unlikely that the two will be played in another father-son type dynamic inFallout. The53-year-old Walton Gogginsis actually only about nine years older than 44-year-old Macaulay Culkin, but the former’s character inThe Righteous Gemstoneswas portrayed as being in his late 60s or early 70s. Though Goggins’ Ghoul is technically over 200 years old,Cooper’s family in theFalloutseriesis only referenced as including a wife and daughter.

Fallout Season 2 Could Give Walton Goggins & Macaulay Culkin Even More Screen Time Than In The Righteous Gemstones

Culkin Only Appeared In 2 Episodes Of The Righteous Gemstones

Since there’s stillno confirmation about who Macaulay Culkin is playingin the series, it’s unclear whether his character’s season 2 story will be tied into that of Walton Goggins’ Ghoul. However, with Ghoul being one of the main characters, it’s still expected that the two will interact, especially sinceCulkin is confirmed to be playing a recurring role. If Culkin ends up playing a relatively substantial role in the sci-fi TV show’s second season, then he may end up having even more screen time opposite Goggins than he did inThe Righteous Gemstones.

Falloutseason 2 will premiere on Prime Video in December 2025.

Culkin ended up only appearing in two episodes fromThe Righteous Gemstones' sophomore season. The first was when Baby Billy went to visit a grown-up Harmon at his home inThe Righteous Gemstonesseason 2, episode 8, which culminated in their reconciliation after Culkin punched Goggins’ character in the face. Subsequently, Culkin only appeared briefly inThe Righteous Gemstones’ season 2 finale as he watched Jesse, Judy, and Kelvin’s performance at the Gemstone Salvation Center. From that point on, Culkin’s character was entirely absent fromDanny McBride’s HBO series.

Even if Culkin and Goggins only spend two full episodes ofFalloutseason 2 on-screen together, they’ll still have surpassed the scenes they shared inThe Righteous Gemstones. Not to mention, there’s always the possibility that Culkin’s undisclosed character will end up becoming a staple in the series, potentially returning inFalloutseason 3 and beyond. Of course, there’s no telling whether that will happen untilFalloutseason 2’s story plays out, butit would be exciting to see even more of Culkin and Goggins’ on-screen chemistry in the futureafter their father-son roles inThe Righteous Gemstones.