Sarah is best remembered as the woman who rocked the Kennedys' marriage in the '90s, and viewers will be expecting her to stir things up in Erinsborough once again upon her return.
Digital Spy recently chatted to Nicola Charles, who plays Sarah, to hear some teasers about what's in store for her character this time around.
How does it feel to be back on Neighbours after so long away from the show?
"It feels like I never left. It's like being back in the womb almost. It's home."
What kind of a reaction have you seen from fans since your return was announced?
"The reaction from my fans and fans of the show has been overwhelming. I knew that Sarah was a popular character, but had no idea she would be received so well upon her return."
When did you first receive the call about returning?
"I received an email from the executive producer last year whilst in Los Angeles following an Inside Soap interview I had done, where I made it quite clear that a return was something I would be open to.
"Obviously the story had to be handled sensitively and carefully, so it took almost a year from that point before we began filming it."
Was returning to the show something you had to take time and think about, or were you keen on the idea straight away?
"When the magazine first posed the question I was stunned. I had never imagined a return would be possible. But my husband Mark had always felt that I should revisit Sarah and so I had pondered it for a while. The answer was always going to be yes."
How easy has it been to 'find' the character of Sarah again after so long?
"Finding Sarah was actually easier this time around. We have an amazing writing team, and I found the truth of the dialogue and interactions very real and therefore easier to interpret. Sarah is also a grown-up now, which has been much more fun."
Neighbours must have changed quite a bit since you were last part of the show. What would you say the main differences are?
"Neighbours has changed since I left, but not as much as you might think. It is a more well-oiled machine. But I was delighted to find many of the cast and crew I knew well still working on the show.
"There is a larger cast and crazier schedules, but somehow the geniuses in Production manage to make it all work!"
How long have you been filming for so far, and how long do you have left on set?
"I have been filming for five weeks and cannot speculate on how long I have left as that might be something of a spoiler for the viewers!"
Has Sarah changed much since we last saw her? Has being a mother changed her perhaps?
"Sarah has changed immeasurably. She is smarter, thinks faster, knows herself better and has a valid perspective on what happened. Being a mother seems to have been the making of her, and I can easily draw parallels from my own life for that."
We know you can't say too much, but can you give us any early hints on what might bring Sarah back to Ramsay Street?
"Well I will say this, contrary to what most fans believe it is not Karl that brings Sarah back. That being said, back she is!"
The Kennedys aren't together at the moment anyway, but is Sarah going to cause more drama between Karl and Susan?
"Sarah has much to catch up on with regard to Karl and Susan, and does so. Whether she intends to 'come between them' remains to be seen!"
Would you say Sarah is over Karl? Does she have a partner in England or is she single?
"Is Sarah over Karl? Gosh, that's an eternal question, isn't it? Are we really ever over our exes? Sarah is separated from her husband Peter Hannay and is therefore single."
Can we expect tension between Susan and Sarah, or do you think they can move on from their past problems?
"Yes. You can expect tension between Sarah and Susan. Of course!"
You've said in the past that there were always loose ends in the Sarah and Karl storyline. Do you think those are going to be tied up now?
"I do think that all the questions about what happened between Sarah and Karl in the past will be answered for the viewers. They certainly are in my mind. But our past remains with us wherever we are, and whoever we move on with. It's the fabric of who we are."
Sarah's storyline with the Kennedys was one of the most memorable of the '90s. Are you proud to have played a character who has gone down in Neighbours history?
"I am extraordinarily proud to have played Sarah. Urban soap myth would have people remember Sarah as a husband-stealing vamp. But she was never played or written that way, in fact the Karl kiss was something she fell into during a very hard time in her life.
"She never planned any of it, and I think her decision to marry another man and remove herself from Erinsborough as a way of dealing with her guilt was extremely brave."
Has it been enjoyable to work with Alan Fletcher and Jackie Woodburne again?
"Alan Fletcher and Jackie Woodburne have been so incredible to work with again. As Sarah is different, their reactions to her are also. It has become a triangle of adults, not a married couple and a young girl anymore. It's one man and two women. Forever linked by a marital indiscretion."
Which of the newer cast members have you particularly enjoyed getting to know?
"New to me - Stefan Dennis who plays Paul Robinson. Great guy. Nutcase. Fabulous actor. Very funny to be around. Sparky and edgy. I like his style!"
We know this is a guest stint for you, but would you be interested in a longer stint if you were asked?
"I will never be disinterested in playing Sarah and if the writing continues to be this good then, yes, I will always want to return and play her."
Neighbours fans are certainly excited about the returnees heading back to the Street. Do you think revisiting the past is a good thing for the show?
"I don't see it so much as revisiting the past but visiting people from the past now in 2012/2013. That's a different thing. People change. Their opinions change, as do their attractions. Nothing and no-one is ever the same as they were 14 years ago!"
> 'Neighbours' stars Carla Bonner, Nicola Charles to return
> Read more 'Neighbours' spoilers and news
Neighbours airs weekdays at 1.45pm and 5.30pm on Channel 5 in the UK, and weekdays at 6.30pm on Eleven in Australia. Get the Inside Soap magazine on your iPhone or iPad