Who Are The Main Characters In Next In Line (Spoilers)?

If I had to name the central players in 'Next in Line' quickly: DCI William Warwick, DI Ross Hogan, Beth Warwick, Miles Faulkner, Booth-Watson, Christine Faulkner, and the real-life figure of Princess Diana who features in a key protection subplot. Warwick runs the Scotland Yard inquiry into the Royalty Protection Command while Hogan goes undercover as a close protection officer for Diana, and the Faulkner thread brings back a familiar art-world antagonist whose legal and personal ripples threaten multiple characters. The mix of police procedure, close protection detail, art theft, and a plot that hints at a wider conspiracy gives each of these characters a clear role to play, and they all intersect in ways that push the story toward tense reveals.

This one pulled me right into the middle of a polished thriller world, and the main players in 'Next in Line' are easy to spot once you start pulling the threads. At the center is Detective Chief Inspector William Warwick — the principled, career detective who leads the Scotland Yard inquiry into the Royalty Protection Command after suspicions rise that people within that elite unit aren’t what they seem. Alongside him is Ross Hogan, the maverick ex-undercover operative who’s sent in undercover and ends up personally charged with protecting HRH Princess Diana, putting him on the frontline of the book’s most tense scenes. Warwick’s wife, Beth, also features more prominently than in earlier books: her work in the art world becomes woven into one of the novel’s major subplots. These core figures drive the procedural side of the story. If you want the more antagonistic side, Miles Faulkner is the recurring nemesis whose art-dealer/collector machinations and legal wranglings keep bubbling through the book. His lawyer, Booth-Watson, and Faulkner’s estranged wife Christine pop back into the mix, complicating loyalties and raising the stakes for Warwick’s team. The plot also brings in a renegade organization with designs on the Crown, so the danger isn’t just petty corruption — it’s national security. Ross’s close protection detail for Princess Diana forces him to balance personal misgivings with professional duty, and Beth’s proximity to the art world drags the Warwick household into the darker side of high-value forgery and theft. Reading it felt like watching several chess games being played at once; character motives keep shifting until the final moves.