20:55CasualtySeries 29Episode 40: If You Could Bottle ItBBC One Duration: 50 minutes Sat 18th Jul 2015, 20:55 on BBC One Northern Ireland HDAn unlikely hero leads the team to a crucial diagnosis, and Rita helps a desperate man realise he needs help.ContributorsJacob Masters:Charles VennDylan Keogh:William BeckConnie Beauchamp:Amanda MealingRita Freeman:Chloe HowmanEthan Hardy:George RainsfordCaleb Knight:Richard WinsorCharlie Fairhead:Derek ThompsonIain Dean:Michael StevensonTess Bateman:Suzanne PackerZoe Hanna:Sunetra SarkerRobyn Miller:Amanda HendersonBen 'Lofty' Chiltern:Lee MeadLily Chao:Crystal YuMax Walker:Jamie DavisNoel Garcia:Tony MarshallBig Mac:Charles DaleKaren Slater:Sophie CossonTarquin Smith:Duncan MacInnesSimon Hunts:Paul SyrstadWriter:Nick FisherDirector:Steve HughesProducer:Sue HowellsGenresDramaMedicalBrandCasualtySeriesCasualty: Series 29 Source: BBC Online