The Boys fans think Prime Video's latest video reveals a major Supe cameo in the season 4 finale, and it’s the one we’ve all been waiting for

homelander in the boys season 4 episode 6
(Image credit: Prime Video)

The Boys season 4 finale is fast approaching and so are the theories as one fan suggests Prime Video’s latest video upload could be a clue to a possible major cameo from a long-lost Supe that got stored away in season 3… Soldier Boy! 

On July 14, just days before the final episode of season 4 is due to drop, Prime Video randomly posted a best bits montage on YouTube of one of the show's most outrageous superheroes, Soldier Boy. The six-and-a-half-minute-long video shows clips of the Captain America-type hero’s best bits from Herogasm to his cameo in Gen V. But the suddenness of the post along with the caption "Soldier Boy is... Soldier Boy. Get ready for the most diabolical season yet," has fans thinking he may make an appearance in season 4 after all. 

One fan took to Reddit to spark discussion, writing "Do you think he’s gonna cameo in the finale?" One user responded, "100%" while others debated what role he would have in the final episode if he was to show up. “I think he’ll show up right at the end and then make a real appearance during season 5," suggested one fan, while another pointed out another clue, "I think it got foreshadowed in the latest episode on the cover of the magazine which Kimiko was reading."

Of course, other fans had a bit of fun with the theory as one jokingly wrote, "He comes in at the end and says ‘it's soldierin' time’," and another chimed in with, "I wouldn’t mind if he wakes up, kills everyone in season 5. The End."

Played by Supernatural’s Jensen Ackles, Soldier Boy first appeared in season 3 when he was found by The Boys in a Russian lab looking as young as the day he was captured. He was later revealed as Homelander’s biological father but Soldier Boy rejected his so-called child and tried to kill him, Ryan, and everyone else in Vought Tower, which led to Maeve risking her life to kill him. And so at the end of season 3 Soldier Boy was put back into a gassed capsule, until now? 

So far in season 4, we have seen Billy Butcher and his Boys try desperately to get their hands on the Supe virus in a last bid to kill Homelander. Now it all boils down to the final episode and we cannot predict which way it will go. Could Soldier Boy make an appearance and does he have anything to do with the virus? For that, we guess we’ll just have to wait patiently for the finale. 

The Boys season 4 episode 8 drops on Prime Video on July 18. For more, check out The Boys season 4 release schedule and the best shows on Prime Video. For more on The Boys, see the rest of our deep-dive coverage:

Editorial Associate, GamesRadar+

I am an Entertainment Writer here at GamesRadar+, covering TV and film for SFX and Total Film online. I have a Bachelors Degree in Media Production and Journalism and a Masters in Fashion Journalism from UAL. In the past I have written for local UK and US newspaper outlets such as the Portland Tribune and York Mix and worked in communications, before focusing on film and entertainment writing. I am a HUGE horror fan and in 2022 I created my very own single issue feminist horror magazine.  

Read more
The Boys season 3
The Boys fans have some big theories about where Eric Kripke will take Soldier Boy in season 5
The Boys season 5: Karl Urban as William "Billy" Butcher punching an enemy during The Boys season 4.
The Boys season 5 release date speculation, cast, plot, and more news
Supernatural
Jared Padalecki opens up on the "effing terrifying" experience of joining The Boys season 5 – and the possibility of a Supernatural reunion with Jensen Ackles
Hughie in The Boys season 1
The Boys season 5 gets a bloody update from Hughie star in gory behind the scenes snap: "Work's been going great guys"
Supernatural
The Boys season 5 sets a Supernatural reunion with Jared Padalecki and Misha Collins joining the cast
Jack Quaid and Jensen Ackles in The Boys
Soldier Boy-centred The Boys prequel adds two stars in mystery roles for the upcoming superhero show
Latest in Superhero Shows
Debra Jo Rupp as Sharon in Agatha All Along
A quickly killed off Agatha All Along star thought she'd be a witch: "I get there and no one is really looking me in the eye"
Peacemaker
Peacemaker season 2 star says the show feels like the DCU's "cool kid" as it's one of James Gunn's "first babies": "I'm excited to see how that expands and grows"
Mark Grayson in Invincible season 3
Voice acting is "complete" on Invincible season 4, which is a major boost to its 2026 release plans
Jack Quaid and Jensen Ackles in The Boys
Soldier Boy-centred The Boys prequel adds two stars in mystery roles for the upcoming superhero show
Mark Grayson in Invincible season 3
Invincible creator reveals fan-favorite villain is already cast ahead of season 4: "He's amazing"
Mark Grayson in Invincible season 3
Invincible season 3 video shows just how well the Conquest fight was adapted from the comics
Latest in News
Dune Awakening
Dune Awakening launches for $50 without a stay in early access, and while the survival MMO "will not have a monthly subscription" it will have "optional" paid DLC
Linda Cardellini as Laura Barton in Hawkeye
Linda Cardellini cast as Jason's mom, the original Friday the 13th killer, for Crystal Lake prequel series
Cyberpunk: Edgerunners
Witcher 3 and Cyberpunk 2077 studio CD Projekt Red won't make survival games just because they're popular, but Netflix's Edgerunners anime is fueling dreams bigger than RPGs
Assassin's Creed Shadows screenshot showing female protagonist Naoe
Assassin's Creed Shadows Naoe actor was terrified to perform until her first mocap scene earned "a standing ovation" on set: "Maybe I can do this mocap thing"
Daredevil: Born Again
Marvel may have just sneakily confirmed one of the biggest Daredevil: Born Again fan theories
Assassin's Creed Shadows cinematic screenshot
Assassin’s Creed Shadows Yasuke actor says that Naoe could beat his samurai in a fight: “Especially with that big a** helmet of mine”