Minnie Driver as Vivienne Mae

Aneurin Barnard as Davey

Danielle Branch as Stella

Kimberley Nixon as Vicki

George MacKay as Jake

Robert Pugh as Headmaster

Tom Rhys Harries as Evan

Kristian Gwilliam as Hoople

Adam Byard as Lewis

Kayleigh Bennett as Dena

Darren Evans as Kenny

Dafydd Llyr-Thomas as Syd / Member, Cwmtawe Community School Choir

Jodie Davis as Mandy

Ryan Hacker as Daz

Lewis Coster as Davey's Friend

Sam Shervill as Davey's Friend

Aled Pugh as Tim

Owen Teale as Davey's Dad

Rhys Rusbatch as Swansea Bloke

Hollie Blundell as Stella's Friend

Haydn Gwynne as Miss Valentine

Steve Speirs as Mr. Cafferty

Glyn Pritchard as Mr. Gill

Di Botcher as Viv's Mum

Alun Raglan as Rhys