Simon Ashdown Creator, Writer, Executive Producer Tuppence Middleton Fi Lawson Actor Martin Compston Bram Lawson Actor Weruche Opia Merle Actor Rupert Penry-Jones Toby, Mike Actor Bronagh Waugh Alison Actor Buket Komur Wendy Actor Harriet Webb Kirsty Actor Dinita Gohil Lucy Vaughan Actor Tommy Finnegan Leo Lawson Actor Casper Knopf Harry Lawson Actor Caroline Vanier Swiss Bank Worker Actor Maureen Beattie Tina Lawson Actor Allison McKenzie DI Lucy Myers Actor Ronak Patani PC Joshi Actor Celinde Schoenmaker Saskia Actor Lu Corfield DS McGowan Actor Suzette Llewellyn Grace Deakin Actor Patrick Brennan Graham Jensen Actor Felix Scott David Vaughan Actor James Michael Hogarth Roger Actor Louise Candlish Writer Tom Mullens Producer Sheree Folkson Director Belinda Campbell Executive Producer