The days leading up to the completion of his most famous painting, A Sunday Afternoon on the Island of La Grande Jatte, Georges Seurat is struggling to make meaningful art and maintaining a relationship with his lover, Dot. Amid the scorn of the artistic community, Seurat's artistic ability thrives while his love diminishes. A century later, Seurat's descendant – named George and also an artist – finds himself burnt out and in search of what artistic path to follow, but he finds the answer to his future in the past.

Julian Ovenden
as Georges / George, An Artist

Sophie-Louise Dann
as Dot, His Mistress / Marie, His Grandmother

Nickolas Grace
as Jules, Another Artist / Bob Greenberg, Museum Director

Rebecca de Pont Davies
as Old Lady / Elaine, George's Ex-Girlfriend

Jessica Walker
as Her Nurse / Harriet Pawling, A Patron

David Curry
as Soldier / Charles Redmond, A Museum Curator

Rebecca Bottone
as Celeste 1, A Shopkeeper / Betty, An Artist

Francesca Jackson
as Celeste 2, Another Shopkeeper / Billy Webster

Beverley Klein
as Yvonne, Jules's Wife / Blair Daniels, An Art Critic

Nicholas Garrett
as Boatman / Dennis, A Technician