David Tennant Tom Kendrick Actor, Executive Producer Cush Jumbo Jess Milner Actor Matthew McNulty Steve Campbell Actor Anna Madeley Kate Kendrick Actor Laurie Brett DC Gemma Darlington Actor Gordon Brown DCI Spencer Collins Actor Lisa McGrillis Sandra McKay Actor Maureen Beattie Carol Kendrick Actor Lindy Whiteford Ruth McKenzie Actor Ron Donachie Callum McKenzie Actor Lorn Macdonald PC Taylor Clarke Actor Lewis Gribben Dylan Denham-Johnson Actor Jamie Michie Simon Wells Actor Stuart Bowman Dr Mark Denham-Johnson Actor Julie Miller Lynn Denham-Johnson Actor Grace Calder Tessa Wells Actor Selin Hizli Sasha Thompson Actor Jack Greenlees Luke Richmond Actor Orla Russell Emily Kendrick Actor Felicity Keenan Iris Kendrick Actor Lilac Jackson Charlotte Kendrick Actor Bradley Connell Lewis Campbell Actor Aaron Connell Elliot Campbell Actor Hannah Donaldson IVF Doctor Actor Leah Byrne IVF Nurse Actor Julia Taudevin Reverend Mary Dunbar Actor Daisy Coulam Writer, Executive Producer Caroline Levy Producer Lynsey Miller Director Karen Wilson Executive Producer