The Boys Theory That Finally Justifies a Supernatural Stars Crossover in Season 5

File this under theories that are a little wild but weirdly convincing: a Reddit post just stitched together Eric Kripke's two greatest hits, The Boys and Supernatural, into one shared timeline. And yes, it even lines up with Jared Padalecki showing up alongside Jensen Ackles in The Boys Season 5.

The theory, in plain English

• Back in Supernatural Season 6, Sam Winchester ends up in the 1800s and leaves his very modern BlackBerry with Samuel Colt. On screen, Colt seemingly uses it only to figure out Sam's future address.
• The theory argues that phone doesn't get buried with Colt. Instead, it winds up with the Men of Letters. They poke around the device, jump their tech forward decades, and build out a secret R&D pipeline way earlier than they should have.
• That early boost lets the Men of Letters evolve into the organization that will eventually be Vought. Their long-standing habit of trying to control big, unknowable forces turns into a lab project to synthesize angel grace.
• That synthetic grace? It becomes Compound V. Like angel grace in Supernatural, it is unstable as hell: some people get powers, some people die. Different franchise, same roulette wheel.
• The neat character overlap that makes fans point and yell is Bob Singer. Jim Beaver plays Bobby Singer in Supernatural and Robert 'Bob' Singer in The Boys. Same actor, same blunt vibe, same general neck of the woods. The theory says the timeline changes wiped out monsters early, so without anything left to hunt, Bobby's life tracks toward politics instead. Same guy, different fork in the road.

The Bob Singer wrinkle

Jim Beaver popping up as a differently calibrated Bob/Bobby in both shows has always felt like a fun wink. The theory reframes it as actual connective tissue: alter the timeline with that stray BlackBerry and a turbocharged Men of Letters, and you get a world where hunters never become hunters and a guy like Bobby ends up running for office. It is deep-lore stuff, but it does line up with Kripke's habit of remixing his own toys.

So where does Jared Padalecki fit into The Boys Season 5?

The season will reunite Padalecki and Jensen Ackles on screen, and Padalecki already teased how his character feels about Soldier Boy.

"I'll say this much - my character is very excited to meet Soldier Boy."

He told fans at Fan Expo Boston that the reunion does not happen right away: it is in Episode 5. He also said the season will drop the first four episodes, then take a short breather before the final four roll out. Padalecki has called joining the show terrifying, which tracks if you have seen how The Boys treats newcomers. We still do not know much about who he is playing, but the Season 5 trailer did give a first look, and the timing suggests his arrival is part of the season's back half push.

The calendar part

The Boys is streaming on Prime Video. Season 5 premieres April 8, 2026, with the show heading into its final chapter.

Supernatural is streaming on Netflix.