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Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Spoilers for The Boys Season 4. Yes: the season finale reveals a physical power linked to Billy Butcher’s tumor. The clue comes earlier, in Episode 6, when the show makes clear that Joe Kessler is a hallucination—not an active partner in Butcher’s present-day story.
What is Butcher’s power?
In the Season 4 finale, Butcher’s body produces black, tumorous tentacles. A draft of the finale script describes them emerging from his chest, providing a literal payoff to the season’s hints about his illness and visions. That scene establishes a disturbing physical manifestation; it does not, by itself, explain the power’s full limits, biology, or future uses.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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The Boys Omnibus Vol. 1 (BOYS OMNIBUS TP 2018) | $25.50 | Buy on Amazon |
| 2 |
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The Boys Omnibus Vol. 2 (BOYS OMNIBUS TP 2018) | $22.60 | Buy on Amazon |
| 3 |
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The Boys Omnibus Vol. 6 (BOYS OMNIBUS TP 2018) | $22.60 | Buy on Amazon |
| 4 |
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The Boys Omnibus Vol. 3 (BOYS OMNIBUS TP 2018) | $22.30 | Buy on Amazon |
| 5 |
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The Boys Omnibus Vol. 5 | $24.58 | Buy on Amazon |
The two reveals are related but distinct: Episode 6 exposes the tumor’s role in Butcher’s visions, while the finale shows the tentacles. The first is a psychological clue; the second is the on-screen power reveal.
When is Butcher’s power revealed?
Episode 6: Kessler is a hallucination
Butcher’s apparent partnership with Joe Kessler initially seems to be part of the season’s present-day action. Episode 6 reveals that Kessler is a hallucinatory figure associated with Butcher’s brain tumor, rather than a real partner participating in those events. TVLine’s episode recap describes the twist.
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Showrunner Eric Kripke connected the visions to both the illness and Butcher’s darker impulses. In a TV Insider interview about the episode, he said: “I just think it’s cancer and the dark side of Butcher that have all metastasized into the same thing.”
The finale: the tumor manifests physically
The finale moves beyond the hallucination clue and depicts the tentacles. The available description comes from a draft of the finale script, which calls them “black, tumorous tentacles” emerging from Butcher’s chest. That supports the scene’s visual description, but it is not an official episode transcript or a complete account of how the power works.
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Is Joe Kessler real in Season 4?
No—not as the active partner Butcher appears to be dealing with. Episode 6 identifies Kessler as a hallucination tied to Butcher’s tumor. The reveal reframes their conversations and gives the tumor a clear role in the season’s story; it does not mean that every aspect of Butcher’s illness or new ability is medically explained.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is The Boys finished?
Yes. Amazon identifies Season 5 as the fifth and final season, and says the series finale arrived on May 20, 2026. The show is listed on Prime Video; availability can vary by territory, so check the local listing.
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