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. Zac is portrayed as being honest, strong, non-judgmental and someone who lives his life to the fullest. Clausen said he and Zac shared some similarities, which he liked. Zac was introduced as Natalie Davison's (Catherine Mack) former boyfriend. As he was the local prison's education officer, Natalie asked Zac to watch out for new inmate Casey Braxton (Lincoln Younes). This brought Zac and Natalie back together and they rekindled their relationship, which had ended when Zac was sent to prison in his twenties. After he started teaching at the high school, Zac almost lost his job when student Holly Chapman (Sacha Vivian-Riding) developed an intense crush on him and then accused him of trying to start an inappropriate relationship with her. Clausen said the storyline was the most interesting that he had ever worked on. Exploration of the character's background began when his family were introduced in late 2013 and Zac briefly became romantically involved with his sister-in-law Hannah Wilson (Cassie Howarth). Zac later married Leah Patterson-Baker (Ada Nicodemou) and learned that he had fathered a son. After the break down of his marriage, Zac departed the Bay on 25 May 2017.