•
Madison Cheeatow as Ruby Skye, budding detective. •
Marlee Maslove as Hailey Skye, advocate for a water bottle ban, tech wizard, and Ruby's little sister. •
Elena Gorgevska as Diana Noughton, the one who mysteriously hates Ruby Skye. •
Scott Beaudin as Edmund O'Fyne, the mysterious new boy who's been seen around the O'Deary Library.
Recurring characters •
Kevin Gutierrez as Griffin Lane, Ruby's best friend. •
Ali Adatia as Vinnie, the new janitor at the Dragon Academy. •
Ryan Egan as Flint Shearson, Ms. Springer's new beau. •
Nawa Nicole Simon as Ms. Springer, former military commander, avid bird watcher and computer teacher. •
Kirklynne Garrett as Mrs. Gooje, Ruby's neighbour. •
Raj Verman as Gary, owner of the local ice cream shop. •
Rodrigo Fernandez-Stoll as Griffin's Father, an unemployed musician. •
Pui-Ling Tam as Constable Officer •
Sarah Higgins as Library Woman •
Laska Sawade as Shop Keeper •
Rosemary Dunsmore as Ava O'Deary, the eccentric owner of the O'Deary Library •
Samantha Wan as Ophelia Bedelia, the librarian at the O'Deary Library •
Laura Decarteret as Lillian O'Shyte, Ava's odd relative, who wants to turn the library into an adults-only condo. •
Jordan Prentice as Henry O'Henry, Ava's relative who has a penchant for speaking with a British accent. •
Geri Hall as Gifted Sarah •
Shaun Shetty as Finch •
Samii Folliot as Cocoa, one of The Mint Chip Girls, an all girl rock group. •
Sydney Klune as Dylan, one of The Mint Chip Girls, an all girl rock group. •
Dana Edmonds Wong as Ulla, one of The Mint Chip Girls, an all girl rock group. ==Production==