There was a high turnover of attractive youngsters in the cast. A small band of older characters proved more enduring with Dr Bruce Russell (Malcolm Thompson), his eventual wife Olivia Baxter (Zoe Bertram), rebellious youth Peter Beckett (Nick Hedstrom), and his former school teacher Miss Elizabeth McKenzie (June Salter) the most enduring characters.
The series made use of dramatic storylines involving murders, kidnapping, amnesia, serial killers and prostitution among the more standard elements as teenage problems, unemployment, romance, jealousy and parental problems.
Others in the cast included Victoria Nicholls, Peter Phelps, Martin Sacks, Jon Blake, Julieanne Newbould, Kim Lewis, Jacqui Gordon, Lenore Smith, Noel Trevarthen, Joy Chambers.