Alison Peebles Director Lindsay Duncan May Brogan Actor Kevin McKidd Kenny Brogan Actor Shirley Henderson Ruby Actor Paula Sage Roberta Brogan Actor James Laurenson Professor Wilkinshaw Actor Fiona Bell Lucy Actor Julie Austin Foghorn Heather Actor Anthony Strachan Mike Actor Maureen Carr Cissie Actor Stuart Davids Big Tony Actor Isla Blair Dr Jackson Actor Eddie Marsan Walters Jez Actor Emma D'Inverno Rosa Mendoza Actor Andrea Gibb Writer Catherine Aitken Producer Steve McIntyre Executive Producer Agnes Wilkie Executive Producer Paddy Cunneen Original Music Colin Monie Film Editing