Honor Swinton Byrne as Julie

Joe Alwyn as Max

Jaygann Ayeh as Marland

Richard Ayoade as Patrick

Harris Dickinson as Pete

Charlie Heaton as Jim

Ariane Labed as Garance

Jack McMullen as Jack

James Spencer Ashworth as William

Frankie Wilson as Frankie

Tilda Swinton as Rosalind

Alice McMillan as Elisa

Oli Bauer as Simon

Barbara Peirson as Barbara

James Dodds as James

Gail Ferguson as Parapsychologist

Yasmin Paige as Patrick’s Assistant

Erik Wilson as Patrick's Director of Photography

Alex Robertson as Patrick's Art Director

Emyr Glyn Rees as Patrick's Assistant Director

Les Child as Patrick's Choreographer

Lydia Fox as Lydia

Inès Rau as Garance's Actress

Nick Woolgar as Assistant Director

Pedro Moura as Art Director

Gala Botero as Suzie

Stephen Higgins as Stephen

Jack W. Gregory as Ray

Crispin Buxton as Head of Film School

Lee Martin as School Handyman

Jonathan Hourigan as Head of Script

Steve Gough as Head of Directing

Richard Bevan as Head of Production

El Pilkington as Susan

Keifer Nyron Taylor as Sound Recordist

Ben Hecking as Ben

Roscoe Gibson-Denney as Boom Operator

James Barrett as Camera Assistant

James Fox as Narrator Patrick's Musical

Lewis Leeson as Horatio / Dancer

Chris Dickens as Patrick’s Editor

Tosin Cole as Phil

Anna Calvi as Anna Sette

Grace Snell as Pop Video Costume

Alice Jones as Pop Video Hair & Makeup Artist

Jesse Solomon as Pop Video Choreographer

Agatha A. Nitecka as Pop Video Stills Photographer

Amrou Al-Kadhi as Julie's Interviewer

Amber Anderson as Jim's Girlfriend

Grace Hancock as Pop Video Model

Byron Broadbent as Max's Shiatsu Therapist (uncredited)

Annabelle Holmes as Cinema Goer (uncredited)

Davide Albonetti as Dancer

Tom Burke as Anthony (uncredited)