Damien Neilson was the identical younger brother of the villainous – Darryl (Mark Ferguson). Damien was created following the resignation of Angela Dotchin (who portrayed Kirsty Knight). Producers planned for Kirsty to leave the show with her true love and the obvious choices were Stuart (Martin Henderson) or Darryl Neilson. There was however several issues, Henderson was busy and Ferguson's character had been killed off as the result of a contractual dispute. Ultimately, Ferguson was brought back to the show as the only unseen brother in the Neilson family unit.
In 1993 Damien rang his mother Marj (Elizabeth McRae) and announced regret at not being able to attend father, Tom's (Adrian Keeling) funeral. In mid 1995 Marj informed Jenny (Maggie Harper) that she was not close to Damien as he was the third child, and thus she didn't often speak of him. In 1998 Damien arrived at the clinic to a very shocked Kirsty Knight, whom Darryl had tried to rape several years before hand. However Damien and Kirsty bonded and she realised he was vastly different from his deceased brother. The home for sexually deviant teenagers that Damien ran caught alight and Damien was seriously injured. He required intensive surgery in Wellington and Kirsty realised she loved him. The two departed Ferndale in mid-1998.
Logan Patterson appeared in two stints throughout 1998. At first Logan was a sexual delinquent 15-year-old, sentenced to spend time in a care houserun by Damien Neilson (Mark Ferguson). Logan showed great progress but after the devastating fire that destroyed the house, Logan was not seen for several months. He returned in May having been fostered and sent to Ferndale High as a classmate of Shelley Crombie (Natalie Dennis). The two initially clashed but soon started to date and Shelley fell pregnant. She aborted the child and Logan soon left school.
Mark Shawn was the paramedic who replaced Donna Heka (Stephanie Tauevihi) as Rangi's (Blair Strang) ambulance partner. A few weeks after Mark's arrival, several homes in the area began to get broken into and several elderly women were badly beaten. The evidence pointed to Rangi and he fled. However Donna soon discovered the real culprit was Mark and he was arrested.
Earl Crombie was mentioned in dialogue for months before being introduced as the husband of Moira Crombie (Geraldine Brophy). Earl finally arrived to Ferndale from overseas during the clinic's talent quest but after the family fell into further financial strife, Earl was forced to move overseas for a job. The Crombies visited him for New Year 1999. Earl returned later in the year when his son Maddy (Joseph Greer) was diagnosed with leukemia and shocked Moira when he purchased a fast food caravan. However the caravan was vandalized and the relationship went on the rocks as Earl had not insured it. Even with the strained marriage, Moira was devastated when Earl died after a drink driving accident.
Luke Billingham first appeared in mid-1998. He was the illegitimate lovechild of Lionel Skeggins (John Leigh) and Judy Billingham (Stephanie McKellar-Smith) who was born in the early 1980s. Lionel was shocked to discover he had a son but quickly bonded with Luke. Luke soon came into trouble for his frequent pornography use and eventually quit his habit. Lionel's girlfriend Mackenzie (Ingrid Park) convinced Luke that Lionel did not want him and he fled Ferndale, only to narrowly survive a severe bus crash. Mackenzie apologized and Luke returned to Ferndale. He began to date Josie Bergman (Karamia Muller) but following the disappearance of Lionel, Luke began to get drugged and manipulated by his father's villainous and by now unstable wife - Mackenzie. Josie fell pregnant and after a brief breakup, the two married and left Ferndale. Several months later it was announced that Josie had given birth to a baby boy.
Dr. Mackenzie Choat was the villainous psychiatrist who first appeared in mid-1998. Mackenzie began to date Lionel Skeggins (John Leigh) but when she discovered Oscar (Christopher Brown) had raped Minnie (Katrina Devine), Oscar framed her for fraud and Mackenzie lost her job. Oscar was found bludgeoned and an increasingly unhinged Mackenzie married Lionel before he realised she was the culprit and fled. Lionel went missing and was suspected dead, leading Mackenzie to desperately sleep with Frank Malone (Christopher Hobbs) and drug Lionel's son Luke (Greg Freeman) so he would stay with her. Caroline Buxton (Tandi Wright) realised Mackenzie was Oscar's attacker and brought the comatoze Oscar to the hospital to scare her. Mackenzie discovered the coma was fake and attacked Oscar, before exploding his hospital room and fleeing with the money he had stolen from the hospital. However, as she fled, Greg Feeney (Tim Balme) sneakily took the money, leaving her with nothing.
In 2012 Park announced her intention to eventually return to the soap, so as to clear Mackenzie's villainous name. She stated, "what did she ever do that was so bad? So she got rid of Oscar Henry, big deal. Heck, she was doing the world a favour. That guy was one bad egg."
Dr. Daniel Buchanan was portrayed by Jack Campbell from 1998 to 1999 and again in 2001. He arrived as the new doctor in 1998 and instantly attracted the attention of business manager Rachel McKenna (Angela Bloomfield). The two started to date and when Daniel left for America in 1999, Rachel followed and several months later it was announced the two had married. Rachel returned in 2001 and announced she had left Daniel when he cheated on her. He returned days later and tried to win Rachel back. After Rachel refused to say she loved him, Daniel left New Zealand and the two got divorced.
Oscar Henry was the manipulative and controlling replacement business manager for Jenny Harrison (Maggie Harper). Oscar was portrayed by Christopher Brown and most famous for his rape of Minnie Crozier (Katrina Devine).
Dean Cochrane first appeared in late 1998. The character was axed alongside many other cast members as part of a revamp in 2001. Dean was the childhood love of Moira Crombie (Geraldine Brophy), however the clinic were shocked with the revelation that Moira had spent time in prison for crime Dean committed. He apologized and shouted her and the family a free trip to visit Moira's husband Earl (Murray Keane) as the year ended. Following Earl's death in 1999, Dean and Moira realised they were in love and got together as the new millennium came in. Dean and Moira married and he was shocked to discover he had a daughter, Erin Kingston (Emma Lahana). When Dean accused Moira's nephew Eamon (Neill Rea) of being a rapist, the couple briefly separated until Dean's theory proved to be true. In 2001 Dean decided to leave Ferndale to be closer to Erin and the Crombie's followed soon after to help run a Bed and breakfast motel.