Recurring Guest Characters Kelly Major 18 guest appearances DCS Dennett 18 guest appearances Dr. Alison Parfit 18 guest appearances DS Judith Papastathopoulos 12 guest appearances Helen Chalmers 11 guest appearances Liam Cleasby 10 guest appearances Officer Mike 9 guest appearances DI Gilbert 7 guest appearances DI Ryle 7 guest appearances PC Williams (not Judy) 6 guest appearances DI Paul Stokes 6 guest appearances Elizabeth Churchland 5 guest appearances Professor Sarah McAllister 5 guest appearances The Voice of A.L. 4 guest appearances Clifford Major 4 guest appearances Pigtails 4 guest appearances Priest 3 guest appearances SOCO 3 guest appearances Roxy Millikan 3 guest appearances The Voice of Brian 3 guest appearances ⇤ « 1 2 3 » ⇥