Main Cast and Characters Overview
Netflix’s Umbrella Academy centers on a fractured family of adopted superhero siblings who reunite to solve their father’s death. The core ensemble balances grounded drama and heightened powers, anchored by a rotating supporting cast and evolving roster of villains and allies. This profile focuses on actors who appear across multiple seasons in credited roles with ongoing screen presence.
| Actor | Primary Character | First Season | Notable Notes |
|---|---|---|---|
| Elliot Page | Viktor Hargreeves / Number Seven | Season 1 | Credited as Ellen Page in early episodes; appears across early seasons. |
| Tom Hopper | Luther Hargreeves / Number One | Season 1 | Leads the family through much of the series; central to the superhero cohort. |
| David Castañeda | Diego Hargreeves / Number Two | Season 1 | Known for sharp wit and agility; remains a main presence through the run. |
| Robert Sheehan | Klaus Hargreeves / Number Four | Season 1 | Brings humor and emotional depth; pivotal in key narrative arcs. |
| Aidan Gallagher | Number Five | Season 1 | Portrays a younger version of the time-traveling sibling; appears across timelines. |
| Justin H. Min | Ben Hargreeves | Season 1 (recurring), later seasons | Ben appears primarily in visions and flashbacks; Min remains a credited presence. |
| Ritu Arya | Lila Pitt / Reginald Hargreeves | Season 2 | Introduced in season 2; expands the family mythology significantly. |
| Colm Feore | Sir Reginald Hargreeves | Season 1 | Foundational performance as the enigmatic adoptive father. |
| Marin Ireland | Sissy Hargreeves | Season 1 | Adds depth to the family’s domestic world and emotional backdrop. |
| Kevin Rankin | Harris | Season 1 | A persistent antagonist early in the series; conveys menace through presence. |
| Jordan Claire Robbins | Grace Hargreeves | Season 1 | The android mother figure; crucial to the siblings’ origin and mystery. |
Elliot Page as Viktor Hargreeves
Elliot Page joined the series as Viktor Hargreeves, also called Number Seven. Page’s performance adds emotional nuance to a character discovering agency and identity amid supernatural revelations. Originally credited as Ellen Page in earlier appearances, Page’s scenes anchor much of the family’s interpersonal conflict. Multiple arcs explore themes of autonomy and acceptance, making this role central to the show’s ongoing evolution.
Tom Hopper as Luther Hargreeves
Tom Hopper portrays Luther Hargreeves, the eldest sibling known as Number One. Luther’s perpetual mission-driven persona creates steady dramatic tension, balancing stoicism with rare moments of vulnerability. His presence connects many timeline-altering plots and decisions, positioning him as a de facto leader despite personal struggles that complicate his reliability across seasons.
David Castañeda as Diego Hargreeves
David Castañeda plays Diego Hargreeves, the acrobatic and sharp-tongued Number Two. His street-smart instincts contrast with the family’s more formal upbringing, and his chemistry with other core members generates both humor and tension. Diego often serves as the moral compass who challenges groupthink, especially during high-stakes confrontations.
Robert Sheehan as Klaus Hargreeves
Robert Sheehan brings levity and heartbreak as Klaus Hargreeves, Number Four. His interactions with spirits and exploration of addiction inform some of the series’ most introspective episodes. Sheehan navigates dark comedy and pathos, ensuring Klaus remains a poignant reminder of the family’s emotional stakes.
Aidan Gallagher as Number Five
Aidan Gallagher portrays a younger iteration of Number Five, whose time-traveling exploits thread many narrative arcs. Gallagher captures youthful impatience and curiosity, often serving as a bridge between timelines. Number Five’s evolution into a more world-weary figure across later seasons marks one of the show’s longest-running character journeys.
Secondary Cast and Expansions
Supporting portrayals deepen the universe’s mythology and introduce new dynamics. Ritu Arya’s Lila Pitt and Marin Ireland’s Sissy Hargreeves add complexity to familial ties, while Colm Feore’s Sir Reginald anchors the show’s origin story. Characters such as Ben Hargreeves, though largely spectral, continue to influence decisions and emotions; portrayals of Grace and other android models further clarify the family’s artificial origins.