Gary and Brooke reconcile their relationship, but Xanthe thinks Brooke is using her father. Gary confronts Brooke, but she convinces him that she has feelings for him. Mack warns Brooke that she is late with her repayment. Brooke manipulates Gary and Xanthe by saying Sheila is looking tired from looking after the house, working and caring for a teenager. She adds extra chilli powder to Sheila's meal, leading to her brief hospitalisation with indigestion. Karl Kennedy (Alan Fletcher) enquires about his jewellery order and Brooke lies that she has not received it yet. She later tells Gary that customs are holding the order and she has to pay a $2000 fee, so Gary lends her the money. Brooke arranges to take Xanthe to Perth for a holiday. Shortly before they leave, Brooke's former boyfriend Trey Johnson (Jason Buckley) turns up, demanding the money Brooke stole from him. Brooke repays him and he leaves. Brooke tells Xanthe, Gary and Sheila that she is in debt and that the jewellery is fake. Mack turns up to collect Brooke's latest repayment and Sheila pays him. She tells Brooke that she will organise some shifts at The Waterhole for her. However, Brooke later writes Xanthe a goodbye letter and leaves town. She later calls Xanthe, but hangs up without speaking to her.

Brooke Butler, played by Fifi Box, made her first screen appearance on 28 September 2016. The character and Box's casting was announced on 18 July 2016. She began filming her first scenes during the same week. Box had previously stated that she had secured an audition for the show scheduled for 15 July. Of her casting, Box commented, "I'm so excited to be heading to Ramsay Street to join the Neighbours family. Acting has been a lifelong dream of mine and to get this opportunity on Australia's most loved and popular show has blown my mind. I'm too excited for words!" Executive Producer Jason Herbison praised Box's audition and said she won the role after showing that she "could pull off Gold Coast chic". Brooke is the estranged mother of Xanthe Canning (Lily Van der Meer) and ex-partner of Gary Canning (Damien Richardson). She was billed as "an opportunistic, flighty and dubious woman who relies on her looks to get by." Network Ten Executive Producer Claire Tonkin added that Brooke would be a "colourful character". In December 2016, Herbison confirmed that Brooke would return during 2017. She returned during the episode broadcast on 12 April.

Ned is the son of Brad Willis (Kip Gamblin) and Beth Brennan (Natalie Imbruglia). His introduction united all of Brad's children on-screen for the first time. Hall explained that Ned has been living with his grandparents in Darwin. He also said there would be tension between Ned and Brad, explaining "having missed out on a childhood with his immediate family he will now have a different learning experience. Learning how to be a brother and a son, all those things. He gets it right sometimes and he gets it wrong sometimes too." Ned is a tattoo Artist and Hall commented that it would lead to some "mischief". He also described Ned as being "very complex" and "quite manipulative", adding "he has had a bit to deal with and it's really interesting how his story line pans out." Ned departed on 17 February 2017, after receiving a job on the Gold Coast.

Sonya is shocked and initially rejects Walter, prompting him to get drunk. When Sonya finds him, she agrees to help him get clean and invites him to move in. Walter breaks up with Terese and babysits Sonya's daughter Nell (Scarlett Anderson), impressing her, but she finds a text on his phone from his ex-wife Roxanne, urging him to be honest with Sonya about something. Walter admits that he has another daughter called Zoe, who has leukaemia. He asks Sonya to get tested to be a bone marrow donor. Sonya meets Zoe and gets tested, but they learn she is not a match. Walter then suggests that Nell could be a donor instead, and Sonya gets her tested in secret as Toadie objects. When she is found to be a match, Sonya tells Toadie, who refuses to let his daughter donate due to her young age. Walter collects Nell from nursery and takes her to the hospital. Realising what Walter has done, Zoe takes Nell back home. Walter apologises to Sonya and Toadie for kidnapping Nell, and Sonya decides not to press charges against him. When Sonya's son Callum (Morgan Baker) is found to be a match for Zoe, she and Walter leave for the United States. In 2018, Sonya hears Zoe's cancer has returned and flies to the States to support Walter, who has begun drinking again.