Havoc Files - Loose ends features stories focusing on various regular characters seen through the original sixteen-book run of Lethbridge-Stewart, including such popular characters as Bill Bishop, Harold Chorley, Owain Lethbridge-Stewart, Dylan Lethbridge-Stewart, Rhys Rubery, Samson Ware and, of course, the lead characters Alistair Lethbridge-Stewart and Anne Travers.