The new Turner family, headed up by Lou Carpenter's daughter Lauren, are new regular characters for the soap and will make their arrival on Australian screens in early February.
Nicola Charles is back as Sarah Beaumont for six weeks and her return scenes also air in early February in Australia.
Carla Bonner is back as Steph Scully for two months and reappears from March in the Australian airings, while Scott McGregor's shock comeback scenes as Mark Brennan air in April and he'll be back for a month.
The UK airings are expected to remain about a month behind Australia in 2013, so Channel 5 viewers should add on a month for all of the arrivals above.
Some reports have suggested that Sarah will be back on Ramsay Street with two children in tow, but this isn't strictly true. Sarah's dialogue will indeed make reference to the fact that she now has two children, but they don't appear on screen and remain in England where Sarah has been living.
Neighbours airs weekdays at 1.45pm and 5.30pm on Channel 5 in the UK, and weekdays at 6.30pm on Eleven in Australia.