Sef briefly visited Vinnie in early 2004 before he was hired late in the year as a temporary replacement for Waverley Wilson (Claire Chitham) on reception whilst she was on maternity leave.
Scarlett Valentine was portrayed by Nicole Thomson and appeared as a regular character for 3 years, returning in a guest role in 2008.
She was terribly bullied by the other girls including Tash Heremaia (Michelle Stewart), not helped by her teenage rebel brother Jake (Callum Gittins).
The arrival of Scarlett's mother Paula (Vivien Bell) to Ferndale raised doubt as to whether Craig or his brother Brett (Colin Moy) were her true father - potentially passing on the gene for Hypertrophic cardiomyopathy.
She provided trouble for Craig when she made advances on his colleague TK Samuels (Benjamin Mitchell), breaking into his house.
Jim Matheson was hired partway through 2004 by Tama Hudson (David Wikaira-Paul) and his girlfriend Shannon Te Ngaru (Amber Curreen) to help out at the hospital cafeteria.
Upon his arrival to Shortland Street, Jim forged friendships with Sticky (Ian Hughes) and Barb Heywood (Annie Whittle).
After being thrown out, it wasn't long before Barb revealed her rape to friend Judy Brownlee (Donogh Rees) along with Sticky who would convince her to report Jim to the police.
Not long after attempting to intimidate Shannon and being interrupted by Vinnie Kruse (Pua Magasiva), Jim would be arrested and eventually plead guilty to rape.
Siobhan O'Leary arrived in mid-2004 as the new nanny for Harry (Callum Campbell-Ross), hired by his father Chris Warner (Michael Galvin).
Siobhan Marshall auditioned for the role shortly after graduating and thought the fact that the character shared her name was destiny.
[1] She won the role and retained it for several weeks, however she struggled with the recognition on the streets, including an incident where the character was a called a "slut".
[2] He instantly got on the bad side of Waverley's husband Nick Harrison (Karl Burnett) and Maia Jeffries (Anna Jullienne).
He also accidentally set the bar alight but was hailed a hero when he rescued Waverley and Nick's children – Lucas (William Tregidga) and Tina-Anne, from the blaze.
[3] Andrew's no nonsense attitude caused him to clash with the staff but many saw his lighter side when he began to date Sarah Potts (Amanda Billing) and when his teenage sister Claire (Emily Robins) arrived.
He arrived with his daughter Talia (Marlia Rogers) in September and was unimpressed by Vinnie's girlfriend Shannon (Amber Curreen).
He worked in a clinic there when Chris Warner (Michael Galvin) and Toni McAllister (Laura Hill) visited but it was not long before he landed a job at Shortland Street.
He was instantly attracted to Maia Jeffries (Anna Jullienne) and saved her life when his psychopathic friend Hugo Carmont (Fraser Brown) tried to kill her in exchange for Mark's romance.
Mark began to date Maia's sister Tania (Faye Smythe) but he cheated on her with school girl Claire Solomon (Emily Robins) which ended the relationship.
The stress got to him and he cheated on Tania with Meg Harris (Emily Mowbray) at his birthday party before he confessed the truth about his and Maia's child to the Jeffries family.
She participated in numerous high profile storylines, the most prominent of which was her relationship with daughter Tania's (Faye Smythe) ex-boyfriend – Ben Goodall (Shaun Edwards-Brown).
Claire was the troublesome teenage sister of hospital CEO, Andrew Solomon (Paolo Rotondo) who quickly became a fan favourite.
Scandalously, she begun dating older man Maestro (Gregory Paintin) but this was brief and she caused Andrew grief when she over-dosed on stolen morphine.
A flirtation with Jake Valentine (Calum Gittins) eventually led to romance but when she accidentally ran someone over in her car she was arrested and sentenced to 100 hours of community service.
Claire left Jake for an affair with much older doctor Mark Weston (Tim Foley), leading to much of the hospital staff rallying against her.
Claire caused trouble with her friend Libby Jeffries (Fleur Saville) when she had an affair with her boyfriend Kieran Mitchell (Adam Rickitt).
In July 2007, Claire's naked body was found in a hospital dumpster and it was clear she had been murdered in what soon turned out to be a Serial Killer.