Eve Myles

as Frankie Maddox

Ben Owen-Jones

as Matt Seren

Carla Henry

as Karen Freestone

Dean Lennox Kelly

as Ian Hargrave

Derek Riddell

as Andy Peat

Jemma Redgrave

as Dr. Zoe Evans

Julia Ford

as Mary McCloud

Leila Mimmack

as Paula Simms

Noma Dumezweni

as Angie Rascoe