CasualtySeries 22Episode 39: Opposing ForcesBBC One Duration: 48 minutesFirst broadcast: Sat 31st May 2008, 19:45 on BBC One ScotlandLatest broadcast: Sat 31st May 2008, 19:45 on BBC One WalesWorking relationships are put to the test at Holby's sci-fi convention, and there are grave consequences when Charlie clashes with a new colleague.ContributorsActor:Mark LittleActor:Tristan GemmillActor:Derek ThompsonActor:James RedmondActor:Gillian KearneyActor:Georgia TaylorActor:Sam GreyActor:Abdul SalisActor:Jane HazlegroveActor:Janine MellorActor:Tony MarshallProducer:Rob WarrGenresDramaMedicalBrandCasualtySeriesCasualty: Series 22 Source: BBC Online