Main Characters Kate Quilton 202 main appearances Matt Tebbutt 202 main appearances Jimmy Doherty 198 main appearances Amanda Byram 14 main appearances Briony May Williams 11 main appearances Andi Oliver 10 main appearances Dr. Helen Lawal 3 main appearances Kiran Jethwa 1 main appearances James Watt Martin Dickie John Whaite 1 main appearances