Main Characters DC Nathan Taxi Driver Grace Soames Geoff Hearn Griff DCI Collingwood Cyd Hayman Sandra Watchdog Susie John Dome Duty Police Sergeant Tom Miller Neighbour to Pam Boxer Greg Father - Tunnel Judy Mavis DJ Brent Moyer Randy Charlotte 'Charlie' Thorpe Jill Gordon Meryl Griffiths Jamie Jarvis Robin Butler-Cooke Alec Frogton Justin Holloway Sharon Daughter - Tunnel Porn - Black Sadie Victor Roger Joe Hunter WPC Pamela Boxer DI George Colby Bouncer Coral Tracy Brian Tony 'Scruffy' O'Reilly Italian Waiter Mr. Miller Carol DS Hawkes Harvey Levin Scott Miller Policeman - Player Son - Tunnel Carol Heather Ringwall Security Guard