Eddie Marsan
— Frank
Tom Sturridge
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Romola Garai
— Christine
Candese Reid
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Shaun Dooley
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Bhasker Patel
— Hasan
John Boyega
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Nabil Elouahabi
— Fisherman
Chris Coghill
— Banker
Shobna Gulati
— Beth
Loraine Wicks
— Christine's Mum
Valerie Gogan
— Evie
Scott McNess
— Carson
Debra Baker
— Receptionist
Scarlett Sabet
— Sally
Salima Saxton
— Special Registrar
Catherine Balavage
— Pregnant Woman