Schiller is the nephew of former Canberra Raiders player Brett Mullins, cousin of Newcastle Knights player Jack Hetherington, and grandson of former Eastern Suburbs winger of the century Bill Mullins.

[2] Schiller made his first grade debut in round 1 of the 2022 NRL season for Canberra against the Cronulla-Sutherland Sharks.

[4] In the 2023 elimination final, Schiller scored two tries for Canberra in their 30-28 golden point extra-time loss against Newcastle.

[5] In round 4 of the 2024 NRL season, Schiller scored two tries for Canberra in their 36-22 loss against Cronulla.

[6] In April, it was reported that Schiller had signed a three-year contract with the Newcastle Knights for the 2025 season.