Tom Hopper as Number One
Luther Hargreeves: Spaceboy
David Casteñeda as Number Two
Diego Hargreeves: The Kraken
Emmy Raver-Lampman as Number Three
Allison Hargreeves: The Rumor
Robert Sheehan as Number Four
Klaus Hargreeves: The Séance
Aidan Gallagher as Number Five
Five Hargreeves: The Boy
Justin H. Min as Number Six
Ben Hargreeves: The Horror
Elliot Page as Number Seven
Vanya Hargreeves: The White Violin
And you
Reader
as, also Number Five
Y/n Hargreeves: The Apparition