Sir Reginald Hargreeves is a fictional character from the comic series and Netflix show, The Umbrella Academy. He is a wealthy and eccentric inventor who adopts seven children with extraordinary abilities, raising them to form a superhero team. Hargreeves is known for his cold demeanor and strict parenting style, often prioritizing the mission over emotional connections. Hargreeves is also the founder of The Umbrella Academy, a group formed to combat various threats to humanity. His character is central to the story, as his mysterious past and the circumstances surrounding the children's adoption play a significant role in the narrative's development.