Tuppence Middleton as Micky

Alexandra Roach as Do

Kerry Fox as Julia

Frances de la Tour as Aunt Elinor

Emilia Fox as Dr. Sylvie Wells

Aneurin Barnard as Jake

Stanley Weber as Serge

Alex Jennings as Chance

Maisie Lloyd as Young Do

Ciara Southwood as Young Micky

Erich Redman as Dr. Muller

Elizabeth Healey as Do's Mother

Pierre Boulanger as Jean Claude

Tim Wallers as Do's Father

Mandi Sidhu as Chance's Receptionist

Neelam Bakshi as Landlady

Jemma Moore as Micky’s Friend