Zac MacGuire is a fictional character from the Australian soap opera Home and Away, played by Charlie Clausen. The actor successfully auditioned for the role in 2012 and was told he had won the role on his birthday. Clausen began filming almost immediately and was initially contracted for three years. Clausen had to give up recording his podcast TOFOP at Seven Network's request, as it was deemed a conflict of interest. He made his first screen appearance on 22 January 2013.

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.