Guest Stars Christopher Cowlin as Police Officer Mabel Watson as Rosie Chamberlain Edmond Moulton as Young Luke Zoe Telford as DCI Jane De Freitas Sean Gilder as Jim Clout Steve Wall as DCS Robert Drake Jenny Ogilvie as Sheila Cross Sam Lathem as Duty Sergeant Jayne McKenna as Julia Chamberlain Brian Duffy as Andrew Yvonne O'Grady as Mary Stuart Laing as Martin Cross Simon Snashall as Graham Sarah MacRae as Kate Hulton Phil Cheadle as Conrad Devenish Patrick Driver as Alec Smithson Matthew David McCarthy as CID Officer Sian Breckin as DC Gabby Lawson Philip Wright as Ian Cross Adam Wilson as Craig Cross Robin Berry as Mark Martin Campbell as Alain Gontrard Leemore Marrett Jr. as DC Howard Stent Max Wrottesley as Adrian