The characters of Offspring, an Australian drama television series are created by Debra Oswald with John Edwards and Imogen Banks.
Main characters
Nina Proudman
Nina Proudman (played by Asher Keddie) is an obstetrician in her mid-thirties, known for her incredibly capable and caring nature. However, despite her proficiencies in her work-life, Nina constantly struggles with bouts of uncertainty, which both helps and hinders her in her quest for love, fulfillment, and balance in the chaos of modern life. In the first season, Nina is involved in a relationship with married doctor Chris Havel. The relationship between the two ultimately comes to an end at the conclusion of the second series.
In the second season, Nina enters a short relationship with a more junior doctor, obstetric registrar Fraser King (Jay Ryan).
Later in Season 2, Nina meets Dr. Patrick Reid, an anaesthetist with a troubled past, and best friend of director of obstetrics, Dr. Martin Clegg.
Season 3 sees Nina happily in love with Patrick, when her apartment is destroyed by fire, and shortly afterward, she discovers that she is not biologically related to the man she knows as her father. Nina and Patrick decide to move in together. Nina discovers the identity of her biological father. Nina and Patrick break up, and Patrick decides to take a job at a different hospital. At Nina's 35th birthday party, in the final episode of the season, Patrick and Nina reunite and find out they are expecting a baby.
In season four, Nina's adventures progress as she and partner Dr Patrick Reid prepare for the birth of their first child together. Toward the end of the season, Patrick calls her to tell her he had been hit by a car while crossing the street (a 'hit and run'). She goes to pick him up, but he passes out while she is driving him home, and she diverts to the closest hospital. As Nina awaits news, Patrick's sister Kate arrives, and together they are told that Patrick has not survived his injuries. Nina chooses to turn off life support and donate Patrick's organs.
In the season finale of season 4, Nina is distraught after losing Patrick, and in desperate need of support from Billie. They both spend a night in a hotel where she goes into labour. Billie drives her to St. Francis, where Nina gives birth to a daughter, assisted by Billie, in the ward where Nina works. Nina names her daughter Zoe.
Season Five sees Nina struggling six months on from Patrick's death. After an awkward attempt at semi-anonymous casual sex, she later meets the man, Leo, again when he is hired as a new midwife at St. Francis. She befriends him and then ventures out on to the dating scene with the support of her friends and family. She starts seeing single dad Thomas, who is later revealed to still be married when his heavily pregnant wife arrives in an emergency to St. Francis. Nina eventually finds love with Leo, realising that what she was searching for was right in front of her all along. However, the romance winds up being short-lived, with Nina then finding love with crisis management specialist Harry Crewe. Nina ultimately finds out she is pregnant with Harry's child.
Billie Proudman
Billie Proudman (played by Kat Stewart) is Nina's boisterous older sister, she is bold, brassy, and incapable of lying. At constant war with Nina's golden girl image within the family, Billie, who was once the wild child, is determined to put her wayward youth behind her, and become something great.
In Series 4, letting go her dream of starting a family with husband Mick, Billie sets out to prove herself professionally by taking over Darcy's real estate business. However, after she drives the business into the ground and ends up selling it to Darcy's business rival, Billie has a breakdown and separates from Mick.
In Season 5, Billie has a relationship with Nina's former counsellor, Lawrence Pethbridge, but to Lawrence's sadness, she eventually reunites with Mick.
Billie moves to the UK to manage Mick's tour, but returns to Melbourne at the start of Season 6 to be with the family in the aftermath of Darcy's death. She decides to stay for her family and to support Brody, the teenage pregnant daughter of her former friend, Stacey.
In the midst of all this. Tensions arise between Mick and Billie and eventually the two decide to break-up for good. As the urging of her co-worker Kerry Green, Billie starts building a sex wall, but one of her bricks winds up being Dan. He happens to intrigue her and, ultimately, she wants to pursue more with him.