Guest Stars Oscar Kennedy as Luke Zoë Athena as Ava Stella Gonet as Leah Deepica Stephen as Maya Jessie Williams as Holly Sunetra Sarker as Meena Nitin Ganatra as Sunil Co Starring Ruby Fubara as Grace Ekow Quartey as Dr James Lauren Carse as Charlotte Caroline Ginty as Nurse Kelly Jenna Boyd as Serena