20:35CasualtySeries 31Episode 16: New Year, New Me, New YouBBC One Duration: 50 minutes Sat 31st Dec 2016, 20:35 on BBC One Wales HDRumours spread about Seb and Dylan, while Ethan's loyalty is pushed to the limit.ContributorsDylan Keogh:William BeckSebastian Grayling:Rik MakaremElle Gardner:Jaye GriffithsCharlie Fairhead:Derek ThompsonConnie Beauchamp:Amanda MealingLisa 'Duffy' Duffin:Cathy ShiptonEthan Hardy:George RainsfordCaleb Knight:Richard WinsorAlicia Munroe:Chelsea HalfpennyDavid Hide:Jason DurrLily Chao:Crystal YuJacob Masters:Charles VennRobyn Miller:Amanda HendersonMax Walker:Jamie DavisIain Dean:Michael StevensonLouise Tyler:Azuka OforkaNoel Garcia:Tony MarshallJez Andrews:Lloyd EverittGrace Beauchamp-Strachan:Emily CareyChrissy Pearson:Alice HenleyPete Brooks:Dominic VulliamyJodie Sims:Robyn HoldawayJake Watkins:Tyler J MitchellWill Watkins:Neil ReidmanWriter:Sarah BeesonDirector:David BeauchampProducer:Dafydd LlewelynGenresDramaMedicalBrandCasualtySeriesCasualty: Series 31 Source: BBC Online