Casting features a predominantly black ensemble including Don Gilet as the new DI Mervin Wilson, Shantol Jackson as Naomi Thomas, Don Warrington as Commissioner Selwyn, and Shaquille Ali-Yebuah, alongside white actors like Élisabeth Bourgine and newcomer Catherine Garton as Sergeant Mattie Fletcher—this diversity aligns organically with the Caribbean locale rather than feeling forced or clashing with any source material. The shift to a black lead detective addressed prior 'white saviour' gripes from earlier seasons but drew minor scattered complaints from some viewers decrying 'DEI' or BBC 'wokeness,' such as assertions that white characters are now mostly perpetrators or victims; however, these do not represent widespread backlash and are overshadowed by standard fan critiques of acting, plot holes, and character exits like Darlene Curtis.

Storytelling revolves around classic whodunits—drownings at retreats, balcony falls, party shootings—with personal arcs focused on family reconciliation (Mervin's brother Solomon), adjustment to island life, and team dynamics, devoid of lectures on systemic racism, identity politics, patriarchy, or social justice activism. No creator statements emphasize ideological mandates, and reception remains positive overall, praising the escapist fun without political preaching. This season exemplifies traditional entertainment prioritizing puzzles and charm over messaging.