Eve Hewson
Flora
Orén Kinlan
Max
Joseph Gordon-Levitt
Jeff
Jack Reynor
Ian
Marcella Plunkett
Kathy
Paul Reid
Kev
Don Wycherley
Guard
Amy Huberman
Aishling
Callan Cummins
Teenager in Music Shop
Sophie Vavasseur
Juanita
Margarita Murphy
Lawyer
Alex Deegan
Samantha
Harvey Hutchinson
Keith
Melissa Morefield
Ukulele Girl
Keith McErlean
Barry
Stephen Ryan
Cyclist
Ali Fox
Neighbour 1
Ruairí Heading
Neighbour 2
Ellie O'Halloran
Shop Assistant
Dylan Kelly
Brian
Ailbhe Cowley
Young Woman (Defendant in Court)
Marcus Lamb
George Rooney
Aislín McGuckin
Judge McGovern
Jessica Freed
Registrar
Colman Hayes
Guard in Court
Stephen Jones
Therapist
Aaron Delaney
Compound Kid 1
Jedidjah Rondala
Compound Kid 2
Kelly Thornton
Heart
Joni Mitchell
Self (archive footage) (uncredited)
Katy Perry
Self (archive footage) (uncredited)
Lionel Richie
Self (archive footage) (uncredited)
Luke Bryan
Self (archive footage) (uncredited)
Tom Delahunty
Smoking Customer (uncredited)