Dominic Minghella Creator Martin Clunes Dr Martin Ellingham Actor Caroline Catz Louisa Ellingham Actor Ian McNeice Bert Large Actor Joe Absolom Al Large Actor John Marquez PC Penhale Actor Jessica Ransom Morwenna Newcross Actor Selina Cadell Mrs Tishell Actor Eileen Atkins Ruth Ellingham Actor Conleth Hill Dr Edward Mullen Actor Angela Curran Caitlin Morgan Actor John Hollingworth Prof. Sam Bradman Actor Olivia Poulet Julia Pote Actor Lucy Russell Dr Emma Ryder Actor James Lance Nathan Fowler Actor Susannah Fielding Mags Fowler Actor Sofia Oxenham Ally Actor Milly Toomey Bethany Degan Actor Elliott Blake James Henry Actor Tom Glenister Paul Actor Philippa Braithwaite Producer Mark Crowdy Executive Producer Colin Towns Original Music Chris Reddy Writer Charles Palmer Director