| 2018 Gains: Mahe Fonua (Hull FC, 2019), Tyson Gamble (2019), Tuimoala Lolohea (New Zealand Warriors, 2019), Benji Marshall (Brisbane Broncos, 2018), 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), Robbie Rochow (Melbourne Storm, 2019), Corey Thompson (Widnes Vikings, 2019), Alex Twal (Parramatta Eels, 2020), Malakai Watene-Zelezniak (Penrith Panthers, 2018) | | 2018 Losses: Matt Ballin (retired), Joel Edwards (released), Justin Hunt (retired), Jamal Idris (released), Jack Littlejohn (released), Kyle Lovett (released), Mitchell Moses (Parramatta Eels), Ryan Papenhuyzen (Melbourne Storm), Jordan Rankin (Huddersfield Giants), 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), Matt Eisenhuth (2019), Tim Grant (2018), Jacob Liddle (2019), Matt McIlwrick (2019), Kevin Naiqama (2018), David Nofoaluma (2021), Moses Suli (2020), Elijah Taylor (2020) |
| Off Contract 2017: Watson Heleta |
