| 2018 Gains: Mahe Fonua (Hull FC, 2019), Tyson Gamble (2019), Tuimoala Lolohea (New Zealand Warriors, 2019), Ben Matulino (New Zealand Warriors, 2020), Chris McQueen (Gold Coast Titans, 2020), Taane Milne (St George Illawarra Dragons, 2019), Russell Packer (St George Illawarra Dragons, 2021), Josh Reynolds (Canterbury-Bankstown Bulldogs, 2021), Corey Thompson (Widnes Vikings, 2019), Alex Twal (Parramatta Eels, 2020), Malakai Watene-Zelezniak (Penrith Panthers, 2018) | | 2018 Losses: Matt Ballin (retired), Mitchell Moses (Parramatta Eels), Ryan Papenhuyzen (Melbourne Storm), Jordan Rankin, Ava Seumanufagai (Cronulla Sharks), James Tedesco (Sydney Roosters), Aaron Woods (Canterbury-Bankstown Bulldogs) |
| Re-Signed: Josh Aloiai (2019), Luke Brooks (2019), Michael Chee-Kam (2019), Jacob Liddle (2019), Matt McIlwrick (2019), David Nofoaluma (2021), Moses Suli (2020) |
| Off Contract 2017: Joel Edwards, Tim Grant, Watson Heleta, Justin Hunt, Jamal Idris, Jack Littlejohn, Kyle Lovett, Kevin Naiqama |
