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. Oscar was introduced to the show along with his twin sister Evelyn (Philippa Northeast) and their aunt Hannah Wilson (Cassie Howarth), creating a family for established character Zac MacGuire (Charlie Clausen). Oscar is portrayed as being a quiet, funny, headstrong teenager. He and his sister entered the show as part of an unusual storyline focusing on a cult. The twins were forced to join the cult by their father Ethan (Matt Minto), which made Oscar uncomfortable and left him struggling to "maintain his individuality". Oscar and Evelyn's early storylines focused on their escape from the cult and Ethan's attempts to get them back. A few months after settling into Summer Bay, Oscar struck Tamara Kingsley (Kelly Paterniti) with a car, leading to his arrest. He was later depicted suffering a panic attack as he struggled with his guilt. Shortly after, the character was at the centre of an issue-led storyline focusing on body image and fitness obsession. Speer hoped the storyline would show younger viewers the dangers of becoming obsessed with being healthy. Oscar's first love interest was his friend Maddy Osborne (Kassandra Clementi). Following a one-night stand in 2014, Oscar and Maddy began a relationship the following year, as he supported her through a cancer diagnosis. Oscar was fatally injured during an explosion at the Caravan Park, and his last scenes aired on 5 May 2016.