Main continuing characters
Marta Dusseldorp as Sarah Adams, who despite a strict Catholic upbringing, moved to Paris to be with the man she loved, and adopted his Jewish faith. She comes to work for the local hospital near the Bligh family, whom she met while serving as a nurse on the ship taking them back to Australia from Europe. Later, she is astonished to hear a report that her husband is still alive following World War II, and her life again spins into troubled times.
Noni Hazlehurst as Elizabeth Bligh, the headstrong and stubborn matriarch of the Bligh family. She at first worries that Sarah will endanger the Bligh family's social position, but she mellows over time. She intuits James' homosexuality, since her own husband also had affairs with men, but she pressures James to stay in the marriage as she had done in her own past. Later in the series, she leaves for Sydney to live with her daughter Carolyn, and becomes a less-domineering, more-relaxed person.
Brett Climo as George Bligh, Elizabeth's son, a good-hearted man who takes Sarah under his protection and gradually falls in love with her. He is Elaine's widower and father to James and Anna, although it eventually emerges that Anna is the secret child of his sister Carolyn and their friend Jack; she was taken in by George and Elaine to spare Carolyn any scandal. His high expectations of James puts his son in danger, until eventually George remembers having once seen his own father kissing another man. George later runs for public office and takes over as lord of the estate. In later years, he has a child by Sarah.
Craig Hall as Jack Duncan, the secret, past lover of Carolyn and secret father to Anna, who now faces many challenges in his work as a doctor in a hospital run by the Bligh family. He is compassionate and generous, despite his episodic personal problems with addiction and depression, and devotes his energy to helping others. Over the series, he and Carolyn connect with their daughter Anna and reconnect with each other.
David Berry as James Bligh (regular: seasons 1–4, 6; recurring: season 5), the only son of George and Elaine, who grows up believing Anna is his sister. In spite of his relationships with local farmhand Harry and fellow student William, he marries William's sister Olivia but, still tormented by his gay desires, he tries to commit suicide. During Olivia's pregnancy, he undergoes electroconvulsive therapy and aversion therapy in attempts to change his sexuality. He feels betrayed when Olivia has an affair, but returns to Ash Park to live for his son. He gets involved with Henry, his father's physician, and later moves to the Riviera in France with William, where he feels he can be fully himself.
Arianwen Parkes-Lockwood as Olivia Bligh, James' wife, a newlywed from England at the start of the series. She does not know that James is secretly in love with her brother, William. She develops anger toward James for his indifference to her desperate need for affection, but eventually tries to come to terms with his sexuality in the interests of their son, Georgie, and of the family estate. She hides for many months the fact that her baby with James died in the womb and that the baby she brought home is not really theirs.
Abby Earl as Anna Bligh, the secret child of Carolyn and Jack, who was raised believing she was daughter of George and Elaine. Anna marries a local farmer, Gino, after rebelling against the expectations of the Bligh family. The marriage faces difficulties, however, when Gino goes into debt, and his attempts to expand the farm fail. Anna becomes a novelist and later has a child with Henry.
Frankie J. Holden as Roy Briggs, a kindly old farmer who lives alone at the series start. He is very generous toward Sarah from the time she arrives in town, eventually offering her a refuge in his small home. They develop an easy, informal, mutually-supportive friendship.
Sara Wiseman as Carolyn Bligh (regular: season 2–6; recurring: season 1). Much like her secret daughter Anna, Carolyn was the rebel child of her generation. For a long time, she gave up on any relationship with the Bligh family, and has had little contact for years. Once her secret is revealed, she is reunited with her long-separated daughter Anna and they develop an even closer relationship than before. Later on, Carolyn works for Sir Richard Bennett, encountering new problems.
Tim Draxl as Doctor Henry Fox (regular: season 3–6), the physician who helps to save George's life after he is shot. Henry befriends James, and they realize their mutual attraction is stronger than mere friendship. Henry helps James learn how to be gay without attracting attention, and the Bligh family eventually accepts their relationship as beneficial for James' mental stability. Henry falls under the devious control of Regina, when she blackmails him into supplying her with morphine for her addiction. He moves to Inverness to be with James, but is devastated when James abandons him to live in Europe with an old flame. In the end of season 5, he has a one-night-stand with Anna Bligh. Towards the end of season 6, Anna gives birth to their daughter, Elaine Elizabeth Bligh, and she and Henry agree to co-parent. Eventually, Henry connects with Harry and begins a romantic relationship. In the series finale, we find out that Henry and Harry got legally married in 2018, both of them in their 90's.
Deborah Kennedy as Doris Collins (regular: season 4–6; recurring: seasons 1–3), the most widely-known member of the Inverness village, who seems omnipresent on her bicycle. Although she means well, her gossiping ways can sometimes make her seem rude and intrusive. Sarah dislikes her at first, but as time goes on, finds her helpful as someone who always knows who has done what in the village.
Dominic Allburn as Harry Polson (regular: season 1 & 6; recurring: season 4), Amy Polson's gay brother, who had had a furtive romantic involvement with James when they were teens. Harry again kisses James, which is observed by Bert, who then beats him up, kicks him out, and blackmails James' family. After another severe beating, Sarah helps Harry to settle back into a more stable life at Inverness. Eventually, Harry connects with Henry and begins a romantic relationship. In the series finale, we find out that Harry and Henry got legally married in 2018, both of them in their 90s.
Aaron Pedersen as Frank Gibbs, an Aboriginal Australian man, a war veteran broken by the effects of his service and by racist treatment. He paints watercolours and is discovered by Carolyn who encourages him to show his work. Frank and Jack bond over their shared military experience. Early in their friendship, Jack remarks that "a bullet can’t tell the colour of your skin. We all took the same risks." Both men learn to trust each other and begin to break free of their self-imposed prisons.