Lucas Hay is the son of Ste Hay and Amy Barnes and the half brother of Leah Barnes and Hannah Hay-O'Connor. His mother died in 2017 when he was 8 years old, it was later revealed she had been murdered by her new husband Ryan Knight. Lucas is a bedwetter.
2015: Lucas jumps with Leah behind Ste, who zips up his shirt.
2015-2016: Lucas and Leah still jump behind Ste, but he does not zip his shirt, and instead he just stands in front of a carnival themed series of lights.
2016-: Lucas rides and carousel with Leah and Ste.
2019-: Lucas has a water-balloon fight with Leah and Ste against Peri and Leela on Oakdale Drive.