Sharon Davies is a fictional character from the Australian soap opera Neighbours, played by Jessica Muschamp. She made her first appearance on 29 July 1988. Sharon is the younger sister of Bronwyn Davies. During her time in Neighbours, Sharon's storylines included setting fire to the coffee shop, a love triangle with Lucy Robinson and Nick Page, pushing Lucy into a swimming pool and developing an eating disorder. The character was written out in 1990 as part of a cast exodus and her departure aired on 7 June 1990. Muschamp reprised the role for a cameo appearance in the show's then-finale episode on 28 July 2022. In October 2023, Muschamp confirmed she would be returning for a guest stint. Sharon returned on 3 November 2023 and departed on 8 November 2023.

Lucy Robinson is a fictional character from the Australian soap opera Neighbours, played by Melissa Bell. The character has previously been portrayed by Kylie Flinker and Sasha Close. She was created by producer Reg Watson as one of the serial's original characters. Lucy was a prominent figure during the early 1990s of Neighbours, with Bell playing her on and off for five years. Portrayed originally as being clever, a recast was implemented to fit the character's transformation and she became the stereotype of a ditzy blonde female. She has been involved in storylines including battling a brain tumour, coping with blindness, incest, modelling and addictions to drugs, alcohol and spending. She has also been positively and negatively received by critics for her "busty blonde" image while played by Bell. After making a brief return on 6 May 2013, Lucy made subsequent return visits until 2016. She was reintroduced as part of the serial's 35th anniversary in 2020, before returning briefly in late 2021 as part of the reintroduction of her half-brother, Glen Donnelly, and twice in 2022, appearing in the show's finale episode. Bell returned on 18 September 2023 following the show's renewal, but departed again on 21 September 2023. Bell returned again on 13 February 2024 for three episode centered around David Tanaka's death and left again on 15 February 2024.