Warning: SPOILERS ahead for The Umbrella Academy season 4.
Summary
The Umbrella Academyseason 4 ends with the Hargreeves siblings ceasing to exist, butit’s unclear if Sir Reginald survives the Cleanse and makes it to the newly reset main timeline.The Umbrella Academyseason 4’sendingis tragic for Reginald’s adopted children, as they realize they’re the reason the universe is split into so many separate timelines. to set things right — and ensure the apocalypse doesn’t happen again —the Hargreeves siblingschoose to sacrifice their lives and make it so they never existed.
They accomplish this by coming in contact with the Durango flowing through Jennifer and Ben. And this twist is a bit controversial, as it’s not the ending the Hargreeves orThe Umbrella Academydeserved. However, the final moments of the fourth season confirm that their sacrifice pays off. In the newly reset timeline, nothing out of the ordinary takes place, confirming the Hargreeves stopped the cycle they’d set in motion.There’s no word on whether Reginald exists in the new timeline though, leaving one mystery unsolved by the series finale.

WTF Was The Umbrella Academy Thinking With Five & Lila’s Story In Season 4?!
The Umbrella Academy season 4 serves as a somewhat disappointing send-off for the show, and Lila and Five’s baffling story makes it even worse.
Sir Reginald Hargreeves Could Be Alive After The Umbrella Academy Ends
He Existed Before The Marigold Created The Hargreeves Siblings
The Umbrella Academyleaves Reginald’s fate up in the air, but he could exist in the new timeline we see in the series finale. Reginald was alive before the Hargreeves were created by the Marigold he released into the world. Depending on how far back the timeline resets, another variant of him could still be walking around in the reset timeline. This would presumably be a variant of Reginald we haven’t met yet, as the Hargreeves' original father and the one they meet in season 3 are likely dead.
Depending on how far back the timeline resets, another variant of him could still be walking around in the reset timeline.

The latter death is never confirmed, but Reginald and Abigail are last seen facing the massive beast that Ben and Jennifer merge into. Knowing what becomes of that universe inThe Umbrella Academyseason 4 — and seeing how unstoppable the monster is —it’s probably safe to assume that version of Reginald met his end. Of course, with no confirmation, it’s possible he’s the one who makes it back to the main timeline at the end of the series.
Sir Reginald’s Life Will Be Very Different If He Does Survive The Cleanse
His Main Purpose Will No Longer Be Training Superhumans
If any version of Reginald survives the Cleanse,he’ll have a very different life than the one we see inThe Umbrella Academyseasons 1-4. Reginald spends much of his life training superhumans and scheming to bring Abigail back. Without the Marigold creating the former, he’ll likely never have those adoptive children — and he certainly won’t raise them to be superheroes. Reginald may still be science-minded and powerful, but his days will look incredibly different. Perhaps it will even force him to move on from his tragicUmbrella Academybackstory.
The Umbrella Academy
Cast
The Umbrella Academy is based on the comic book of the same name created by Gerard Way and Gabriel Bá. The Hargreeves — collectively known as The Umbrella Academy — were born with superpowers, and their adoptive father utilized their abilities. However, as they grew older, the siblings grew apart as they dealt with their trauma. They are brought back together after their father dies and Five returns from the future with grave news: The world will end, and The Umbrella Academy has to stop it before it happens.
