Oona Chaplin
as Mia
Will Mellor
as David
Ben Chaplin
as Stephen
Gemma Chan
as Erica
Sheridan Smith
as Jenny
Andrew Scott
as Christian
Greg McHugh
as Callum
Katie McGrath
as Kate
Montanna Thompson
as Ellie
Neil Maskell
as Nick
Sian Breckin
as Heidi