Dan Sefton Creator, Writer, Executive Producer Amanda Redman Dr Lydia Fonseca Actor Amrita Acharia Dr Ruby Walker Actor Nimmi Harasgama Nurse Mari Rodriguez Actor Harki Bhambra Dr Samir Hasan Actor Rebecca Ablack Dr Nikita Sharma Actor Raquel Cassidy Frankie Martin Actor Neil Morrissey Greg McConnell Actor Chetna Pandya Dr Hira Grover Actor Connor Catchpole Bobby Martin Actor Jeff Mirza Amir Khan Actor Mita Rahman Pila Khan Actor Darshan Jariwalla Dr Ram Nair Actor Nandun Dissanayake Karishma's Father Actor Mikayla Stephen Karishma Actor Thilina Udayaratne Jamil Actor Harsha Thennakoon Police Officer Actor Philip John Director Ben Foster Music Trevor Ingman Producer Rosemary McGowan Producer Lucy Bedford Executive Producer Erika Hossington Executive Producer