Grey Matter

Eloise Smyth

— Chloe

Stephanie Beacham

— Peg

Paul Brennen

— Peter

Kierston Wareing

— Sandra

Harry Kirton

— Sam

Elizabeth Berrington

— Eileen

Sunetra Sarker

— Psychiatrist

Brooke Burfitt

— Dr. Spencer

Nigel Boyle

— Nicholas

Simon Ellis

— Bus Passenger

Zoë Clayton-Kelly

— Megan