Why Every Sea Creature in ‘The Boys’ Turned on The Deep in Season 5

For five seasons, Kevin Moskowitz, the aquatic superhero better known as The Deep, built his entire identity around one central claim: the ocean loved him. He could communicate with fish, breathe underwater, and styled himself as the undisputed king of the sea. ‘The Boys’ wrapped its fifth and final season with Episode 8, “Blood and Bone,” closing out major storylines including Homelander’s shocking death and The Deep’s brutal ocean death.

What that finale delivered for The Deep was not a redemption arc or a heroic last stand. It was a reckoning years in the making, executed by the very creatures he had always claimed to champion. The irony of being a supe whose entire identity was built on his bond with sea life, only to become the creature sea life most wanted dead, is the kind of writing ‘The Boys’ does better than almost anything else on television.

The Oil Spill That Sealed The Deep’s Fate

The chain of events leading to The Deep’s watery execution began not with a sudden outburst, but with a calculated lie. In Episode 6, Sage asked The Deep to film a PSA in favor of a Vought underwater oil pipeline, and The Deep claimed on camera that his aquatic friends were perfectly fine with the project. It was a performance of environmental goodwill masking a catastrophic deception.

The oil spill that followed was no accident. Black Noir II had flown up and punched a hole in the poorly made pipe as an act of revenge against The Deep for stealing his spotlight and murdering theater director Adam Bourke. The sabotage was personal, but the consequences were planetary.

Some of The Deep’s most notoriously awful deeds include sexually assaulting Starlight, killing Ambrosius, and instigating a feud with Black Noir II that caused the Alaska oil spill, killing approximately 1.4 billion fish. That staggering death toll became the final, unforgivable entry in a lifelong ledger of self-serving choices.

‘The Boys‘ Season 5 pushed The Deep to the limit after he endorsed the controversial underwater oil pipeline. The penultimate episode revealed that the ocean life blamed The Deep and warned him never to return, or they would kill him.

Samuel L. Jackson, Xander, and the Verdict From the Deep

The show found a brilliantly cast messenger to deliver that death sentence. In Episode 7, after The Deep was dismissed from the Seven by Homelander and went to the beach to sulk and throw back a few drinks, he was greeted by Xander, who tried to lure The Deep into the waters before making it clear that all of the creatures in the ocean blamed him for the oil spill.

That voice belonged to none other than Samuel L. Jackson, who voiced Xander in a scene where Jackson used his iconic delivery to serve up a threat. “If you step one foot, one f-cking stupid-a-s simian toe in the water, anywhere — an ocean, a stream, a f-cking puddle — go on, son, you’re dead.”

Jackson was actually the second major Hollywood legend to lend their voice to a marine creature on the show, following Tilda Swinton’s voice cameo as The Deep’s octopus lover Ambrosius back in Season 4. The show had been quietly constructing this tradition, and both casting choices now read as deliberate foreshadowing of the finale’s brutal punchline.

The show’s writers constructed a long and consistent trail of Kevin burning every bridge, and the cameo in Episode 7 is the ocean slamming the door shut for good.

The Ghost of Ambrosius and a Betrayal That Cut Deepest

Beyond the oil spill, the sea creatures carried a far more intimate grievance into that final confrontation. Part of the reason why the sea creatures were hellbent on killing The Deep was personal revenge for his murder of Ambrosius in Season 4, Episode 7. Ambrosius was one of the few beings who truly cared about him, but he left her for dead after he smashed her tank and left her to suffocate on the floor.

Ambrosius’s final words were “I love you.” In the finale, Ambrosius’s death became part of the reckoning that the ocean delivered. The tentacle that ultimately killed The Deep was no random act of marine violence. The fact that a tentacle finished him is a pretty clear nod to Ambrosius, a tragic and well-meaning character whom The Deep allowed to die after breaking her aquarium near the end of ‘The Boys’ Season 4.

The Deep killed Ambrosius, the only individual of any species to ever truly love him, in a fit of insecure rage, just as he helped drown billions of sea creatures in crude oil when he lied about the pipeline’s safety. The ocean remembered both sins equally.

How Starlight Delivered Kevin Moskowitz to His Judges

The mechanics of The Deep’s final moments were as poetically constructed as the buildup. ‘The Boys’ Season 5 confirmed The Deep’s death during a pivotal battle against Starlight in the finale. Starlight pulled The Deep away from the chaos of the main fight and flew him to a nearby beach for a long-overdue confrontation.

During The Deep’s fight with Starlight in the finale, she gained the upper hand and blasted him into the sea. Unbeknownst to Starlight, the oceans were very, very angry with The Deep, and she could only watch in disbelief as numerous sea creatures swarmed him and a giant squid drove a tentacle through the back of The Deep’s head.

Making the sea creatures the main reason for his demise proved how much of a loser The Deep really was, because even his supposed subjects finally got fed up with his nonsense and selfish nature. The Deep went out exactly as he lived: a joke.

‘The Boys’ Season 5 sent a strong message about The Deep’s death by letting the sea creatures have a go at him in his final moments. The ocean didn’t just kill The Deep, it canceled him in the most brutal way possible. By never once taking real responsibility for his actions, the entire aquatic world collectively decided that The Deep is not the ideal role model or king that they want to represent them in the surface world.

Chace Crawford spent five seasons making Kevin Moskowitz one of television’s most watchable disasters, and the show repaid that commitment with an ending that was equal parts devastating and perfectly deserved. If you spent any of the final season quietly hoping The Deep might somehow find his way to something resembling growth, now is the time to share whether you think the ocean gave him exactly what he earned or took things one tentacle too far.