First broadcast 9th/16th/22nd January 1992.<br /><br />The discovery of two skulls at the site for a new by-pass road leads the team to a pharmaceutical company.<br /><br />Mark McManus - DCI Jim Taggart<br />James MacPherson - DS Mike Jardine<br />Ann Mitchell - Annie Gilmour<br />Ken Drury - Dr. Nielson<br />Lorna Heilbron - Morag Nielson<br />Michael Cochrane - Derek Amlot<br />Leone Connery - Christine Gray<br />Jeremy Young - Prof. Hutton<br />Blythe Duff - DC Jackie Reid<br />Iain Anders - Supt. Jack McVitie<br />Robert Robertson - Dr. Stephen Andrews<br />Harriet Buchan - Jean Taggart<br />Juliet Cadzow - Maureen MacDonald<br />Geoffrey Beevers - Angus Mackay<br />Dougray Scott - Colin Murphy<br />Calum Shaw - Dennis Taylor<br />Alison Sterling - Jill Cramer<br />Grant Cathro - Carl Young<br />Niven Boyd - Frank Sullivan<br />Diane Taylor Whitehead - Janet Gilmour<br />Simone Lahbib - Caroline Peterson<br />David Gallacher - Reporter<br />Bill Denniston - Address to the Haggis<br />Jim Boyce - Truck Driver<br />Bill Little - Prisoner<br />Shareen Nanjiani - Newsreader<br />Iain Wotherspoon - Doctor<br />Betty Bright - Cleaning Lady<br />Jacqui Prentice - Hotel Receptionist<br />Emma Currie - Madeline Brown<br />Gary Grochla - Locksmith<br />Michelle Gomez - Hairdresser<br />Louise Dobbie - Maureen's Daughter<br />Paula Fraser - Maureen's Daughter
