Raffey Cassidy as Molly Moon

Dominic Monaghan as Nockman

Lesley Manville as Miss Adderstone

Emily Watson as Miss Trinklebury

Joan Collins as Tracey Nockman

Anne-Marie Duff as Lucy Logan

Celia Imrie as Edna

Sadie Frost as Mrs. Alabaster

Gary Kemp as Cregg

Omid Djalili as Barry Rix

Fern Deacon as Hazel

David Menkin as Qube Dad

Mac Pietowski as Police Officer

Grahame Fox as Shotgun

Ben Miller as Mr. Alabaster

Kriss Dillon as Celebrity

Jake Swift as Roger

Tom Bell as Organiser

Lucas Bond as Gerry

Tallulah Evans as Davina Nuttel

Harry Lawtey as Qube Surfer

Tom Wisdom as Charlie Cooper

Nina Young as Reporter 1

Danny Babington as Reporter 2