Hannah Wilson
Zac is liked by the students and Holly Chapman develops a crush on him. Holly flirts repeatedly with Zac, but he dismisses her advances which upsets her. Natalie warns Zac about Holly's behaviour, before she leaves Summer Bay to find her mother. Holly later claims that Zac sexually harassed her and Zac is suspended while Bianca investigates. Holly threatens to throw herself off a cliff, but Zac manages to stop her. Bianca is fired after she speaks out in defence of Zac, but a student protest sees her reinstated. Zac develops feeling for Bianca, but when he learns that she almost postponed her wedding, he apologises and makes Bianca realises how much she loves her fiancé. Zac's sister-in-law, Hannah Wilson, comes to the Bay asking for Zac's help in rescuing their niece and nephew from a cult that Zac's brother, Ethan, has got them involved in.