Leonard Peabody born Harold Jenkins is a character who became the love interest of Viktor Hargreeves and the main antagonist of the Netflix adaptation 's first season. Leonard was coincidentally born on the same day as the Umbrella Academy siblings, and he convinced himself that he was one of the children born that day with special powers.
His mother died during childbirth, causing his father to become an abusive alcoholic. Because of this, Leonard ran away to try and join the Umbrella Academy, but was turned away by Sir Reginald Hargreeves and laughed at by the crowd. Later, his father would make fun of him for his outfits and send Leonard to fetch his beers. On one occasion, when Leonard took too long, his father physically hurt him. Fed up by the abuse, Leonard murdered his father by striking him on the head with a hammer while he was sleeping.
He was sentenced to 12 years in prison for the crime. After finding a diary written by Reginald about Viktor that had been thrown into a trash can by Klaus , he sought Viktor out. It is implied that Jenkins is the person responsible for the apocalypse, and the note read "Protect Harold Jenkins". When Five returned, Diego got his criminal file, and they found out that Leonard was Harold, validating Allison's initial concern about him.
Leonard took Viktor to his grandmother's house to convince Viktor to use his powers. Allison arrives to find Viktor and tells him the truth about Leonard, but Viktor is upset about Allison getting involved in his love life. When Allison felt that she needed to resort to using her power to stop Viktor's rage, Viktor ended up nearly killing Allison by slitting her throat with his violin bow.
Leonard returned to see what he thought was Allison's dead body, so Viktor and he ran away. Leonard urges Viktor to get revenge on the rest of the Hargreeves by hitting a book and calling him ordinary and weak, resulting in him using his powers to kill Leonard.
