Inspector Tom Monroe (Robert Carlyle) investigates the mysterious death of several people that the only thing they have in common is being classmates. In addition, the deaths appear to be related to a mysterious "faceless child."
| Actor | Role |
|---|---|
 Robert CarlyleDI Tom Monroe | DI Tom Monroe |
 Daniel MaysDS Steven Grant | DS Steven Grant |
 Claire SkinnerDr. Kate Tremaine | Dr. Kate Tremaine |
 Robert GlenisterFrank Thompson | Frank Thompson |
 Sean GallagherColin Somerville | Colin Somerville |
 Tony HaygarthDS Pritchard | DS Pritchard |
 Anton LesserMartin Gibson | Martin Gibson |
 Pip TorrensSupt Flood | Supt Flood |
 Paul IrelandAndy | Andy |
| WWilliam IlkleyCharlie Drain | Charlie Drain |