Dedicated fans of the hit series Fallout believe they have uncovered a major hint about the mysterious character played by Macaulay Culkin within the first episode of the show's highly anticipated second season.
A Hidden Poster Sparks Fan Theories
The new season of Prime Video's adaptation of the iconic video game franchise launched on 17 December 2025, with the first of eight episodes dropping on the streaming platform. While the season is being released weekly, preventing a binge-watch, early reviews based on the first six instalments have been overwhelmingly positive. The series has already achieved a near-perfect 98% rating on Rotten Tomatoes, surpassing the score of its acclaimed first season.
The plot continues directly from the first season's dramatic finale, following Lucy's quest to find her father, Hank, and delving deeper into the sinister secrets of Vault-Tec and the pre-war world. This season expands the universe further, introducing iconic elements from Fallout: New Vegas, including factions like Caesar's Legion and Mr. Robert House, as well as terrifying creatures like the Deathclaws.
The 'Revenge of Brutus' Connection
Among the new cast members is former child star Macaulay Culkin, though details about his role have been kept tightly under wraps. Fans had already deduced from trailers that he appears to be a member of Caesar's Legion based on his costume. Now, a subtle background detail in the premiere has ignited speculation about his character's identity and fate.
In a scene where Cooper (played by Walton Goggins) speaks with his wife Barb, a poster for a fictional film called 'Revenge of Brutus' is visible. The poster references the aftermath of Julius Caesar's assassination, a historical event that sparked civil war. On the Fallout subreddit, fans quickly theorised this was a deliberate clue.
One popular theory suggests it directly foreshadows Culkin's character. A fan posted: "My theory is that Macaulay Culkin's character will be named Brutus and that he seized the Legion by force." This would align the actor's role with the historical figure who betrayed Caesar, hinting at a potential power struggle within the Legion's ranks.
Alternative Theories and Deeper Meanings
Not all viewers agree the clue points to Culkin. Some believe the poster's placement in a scene focused on Cooper (who becomes The Ghoul) is significant for his storyline. One fan argued: "I agree it’s foreshadowing, but I think it’s about Cooper himself. Brutus betrayed and killed Caesar. So maybe Cooper will betray and kill House, or maybe even 'kill' Vault Tec somehow."
This interpretation is supported by earlier scenes in the episode where Cooper secretly listens to his wife's corporate meetings, uncovering Vault-Tec's true ambitions. Another commenter noted: "The romantic explanation is Brutus was fighting for the Republic against Caesar and a military dictatorship. Cooper is already conspiring against Barb." They suggested the Legion's storyline might be a secondary plot this season.
Regardless of which theory proves correct, the discovery highlights the show's detailed world-building and has successfully intensified anticipation for Culkin's official introduction and the unfolding political machinations in the Mojave Wasteland.
Fallout season two is now streaming exclusively on Prime Video, with new episodes released weekly.
