James Norton

as Pete Riley

4 episodes

Niamh Algar

as Maddie Wilson

4 episodes

James McArdle

as Miles Lambert

4 episodes

Jessica Brown Findlay

as Lucy Lambert

4 episodes

Alban Guo

as Theo Riley

4 episodes

Fraser Cornelissen

as David Lambert

4 episodes

Theo Ogundipe

as Ollie

3 episodes

Sunetra Sarker

as Anika Chowdhury

3 episodes

Amy Morgan

as Jen

2 episodes

Cara Mahoney

as Paediatric A&E Doctor

2 episodes

Phil Davis

as John Riley

2 episodes

Rebekah Murrell

as Stella

2 episodes

Posy Sterling

as Kiera Keenan

2 episodes

Alisha Bailey

as DS Ridley

2 episodes

Akbar Kurtha

as DS Chopra

2 episodes