Oscar MacGuire is a fictional character from the Australian soap opera Home and Away, played by Jake Speer. The actor was cast in the role after a successful audition and a callback, in which he acted alongside various actresses to find the right one to play Oscar's sister. He began filming his first scenes in April 2013. Speer expressed his surprise at being cast in Home and Away, as he did not think he had "the right look" for the show. He made his first screen appearance during the episode broadcast on 3 September 2013.

Josh Barrett is a fictional character from the Australian soap opera Home and Away, played by Jackson Gallagher. The actor was initially hesitant about auditioning for the role, as he believed he was too old to portray a 16-year-old. However, three days after attending the audition, he learnt he was successful. Gallagher relocated to Sydney for filming. His character was introduced along with his on-screen brother Andy Barrett through a series of online webisodes titled Home and Away Extras. He then made his debut appearance in Home and Away during the episode broadcast on 27 August 2013. Gallagher's departure from Home and Away was announced in May 2016, and Josh's last scenes aired on 5 July 2016.