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.

Shannon Reed is a fictional character from the Australian soap opera Home and Away, played by Isla Fisher. She made her first on screen appearance on 16 September 1994. She departed on 6 August 1997. Ashley Murray played a young Shannon in flashbacks.