Mouche Phillips joined as Viv Newton in July, and September saw the arrival of Dannii Minogue as Emma Jackson.
[1] The character was reintroduced on 27 March 2018, and the role was recast to Belinda Giblin, who previously played Cynthia Ross in 1991.
[1] Meagher told Simon Timblick of the Radio Times that he may have suggested Giblin for the role, saying "When it was first mentioned to me they were thinking about bringing Martha back, they hadn't started looking and I said Belinda would be terrific.
[3] Alf tells their daughter Roo Stewart (Georgie Parker) that Martha did not die as previously thought, but she had in fact disappeared as she was unhappy with her life.
[3] The character returns the following year, after receiving a phone call from Alf, which leads them to reconcile romantically.
Meagher thought that Martha was probably the love of his life, despite his marriage to Ailsa Stewart (Judy Nunn).
Martha appears in flashbacks when Bobby Simpson (Nicolle Dickson) reads her diary entries while searching for leads on her biological parents.
It is revealed that Martha knew that Alf's sister, Morag Bellingham (Cornelia Frances) was Bobby's mother and subsequently had her adopted out to Al (George Leppard; Terence Donovan) and Doris Simpson.
Martha comes to Summer Bay House and meets Ryder Jackson (Lukas Radovich), who asks if she wants to rent a caravan from Alf.
After seeking help and treatment, the guilt and fear stopped her from coming back, but she knew Roo would have a good life.
The following day, Martha comes to Summer Bay House to leave her contact details for Roo and she apologises to Alf, before explaining why she left.
She admits that she loves him and Alf is short with her, but after catching Martha packing her bags, they agree to see where things go between them.
When Martha struggles to contact Roo, who is teaching in a remote area, she panics and works herself into a state.
During her next visit to the Bay, Martha tells Roo that she is back to stay and Alf asks her to move in with him, which she later accepts.
Martha initially struggles with the move and talks with Alex Neilson (Zoe Ventoura) about her mental health.
Martha is contacted by her son Kieran Baldivis (Rick Donald) and she confides in Irene Roberts (Lynne McGranger) about him.
Martha then tells Roo that she has a half-brother, and explains that their relationship is complicated and he has not been in her life for a number of years.
Vicki then frames Emma for stealing exam papers from Donald Fisher's office, which sees her expelled.
Brendan McKensy's portrayal of Duncan earned him a nomination for Best Young Actor at the 1999 Inside Soap Awards.
[14] Adam Cameron, played by Mat Stevenson, debuted on-screen during the episode airing on 28 June 1989.
Stevenson had previously guested on rival soap opera Neighbours on Network Ten as petty criminal Skinner.
[20] Stevenson told writer Jason Herbison of Inside Soap that he enjoyed playing Adam again so much that he considered asking the producer for a full-time return.
[23] Emma Jackson, played by Dannii Minogue, made her first on-screen appearance on 22 September 1989 and departed on 22 August 1990.
For her portrayal of Emma, Minogue was nominated for the "Most Popular Actress on Australian Television" Logie Award in 1989.