Olivia Fraser Richards is a fictional character from the Australian television soap opera Home and Away, played by Raechelle Banno. The character was born on-screen to parents Lachlan Fraser and Chloe Richards during the episode broadcast on 20 April 1998. Producers allowed Grieve and Wright to choose the name of their characters' daughter and they eventually settled on Olivia. The character was played by a number of infant actors until her departure in 1999. In 2005, Wright reprised her role as Chloe, while Ivy Latimer was cast as Olivia. Following Chloe's death, Olivia was at the centre of a custody battle between her grandmother Diana Fraser and Chloe's foster mother Irene Roberts.

Lachlan "Lachie" Fraser is a fictional character from the Australian Channel Seven soap opera Home and Away, played by Richard Grieve. He made his screen debut on 19 March 1997 and last appeared on 27 November 1998. He joined the show after previously appearing in rival soap opera Neighbours. Lachlan is introduced as a new doctor working at Summer Bay's local hospital. Grieve had to research the profession and received help from an on-set medical advisor. Lachlan is characterised as a sweet and gentle person who is brilliant at medicine.