The Umbrella Academy: Everything You Need To Know
5. #5: The Boy, Aka ... ???
The actual name of the one codenamed Number Five is unknown. He is either referred to as his numerical identifier or by just The Boy. The fifth sibling has the ability to time travel, but is not very good at traveling back. At one point the youthful hero jumps 20 years into the future and ends up spending 50 years attempting to find a way to go back.
When The Boy finally worked out how to return to the past to warn his siblings about the coming apocalypse, he transformed back into his 10-year-old self. This anomaly left him permanently unable to age due to a temporal condition.
While doing the whole traveling back in time bit, Number Five was captured and surgically enhanced by the agency dedicated to protecting the time continuum, Temps Aeternalis. They employed him as their perfect killer.
Actor Aidan Gallagher from Nicky, Ricky, Dicky & Dawn will be portraying the one simply codenamed The Boy. From the looks of his demeanor in the trailer, he’ll have no problem pulling off the character that constantly has a low tolerance for fools, and is quite often the smartest person in the room.