Sophie Ramsay is a fictional character from the Australian soap opera Neighbours, played by Kaiya Jones. The actress was cast in the role following a competitive audition process. Jones began filming her first scenes in February 2009. She made her first screen appearance during the episode broadcast on 18 May 2009. The character was created as part of a new generation of the Ramsay family, along with her brother Harry and sister Kate. Sophie is the youngest of three siblings introduced to the show. Sophie departed on 29 March 2013, after Jones decided to leave to concentrate on her schooling. The actress briefly reprised the role for two episodes on 7 and 8 April 2014.

Summer Hoyland is a fictional character from the Australian soap opera Neighbours, played by Jordy Lucas. She made her first screen appearance during the episode broadcast on 20 May 2002. The character was originally played by Marisa Siketa from her arrival to her departure in 2005 and her subsequent returns in 2006 and 2007. In October 2009, it was announced that the character was to return to the show. Siketa auditioned for her previous role, but producers felt the character had evolved too much. They decided to cast Lucas instead after she came to their attention during Dolly magazine's "Neighbours Next Big Stars" competition. Summer returned on 11 February 2010. Lucas announced her departure from Neighbours in September 2012 and Summer departed on 10 January 2013. Lucas reprised the role on 30 November 2023.