Cailee Spaeny as Lily

Lovie Simone as Tabby

Gideon Adlon as Frankie

Zoey Luna as Lourdes

Michelle Monaghan as Helen

David Duchovny as Adam

Nicholas Galitzine as Timmy

Julian Grey as Abe

Charles Vandervaart as Jacob

Hannah Gordon as Ashley

Donald MacLean Jr. as Isaiah

Fairuza Balk as Nancy Downs

Chris Tomassetti as Jeremy

Kris Siddiqi as Sex-Ed Teacher

James Madge as Mr. Bly

Victor Chiu as Detention Teacher

Devin Cecchetto as Popular Girl

Debbie Fan as Woman Behind Desk

Heath V. Salazar as Bullied Student

Eddie Max Huband as Bully

Travis Caverhill as Valentine (uncredited)

Michael Dara as Cat Calling Man (uncredited)

Owen Szabo as Birthmark Man (uncredited)