| 2018 Gains: Herman Ese'ese (Brisbane Broncos, 2020), Aidan Guerra (Sydney Roosters, 2020), Shaun Kenny-Dowall (Sydney Roosters, 2019), Tautau Moga (Brisbane Broncos, 2020), Kalyn Ponga (North Queensland Cowboys, 2021), Connor Watson (Sydney Roosters, 2020) | | 2018 Losses: Jaelen Feeney (released), Dane Gagai (South Sydney Rabbitohs), Rory Kostjasyn (retired), Sam Mataora (retired), Jarrod Mullen (released), Mickey Paea (Hull FC), Pauli Pauli (released), Tyler Randell (Wakefield Trinity), Jack Stockwell (released), Anthony Tupou (retired), Joe Wardle (Castleford Tigers) |
| Re-Signed: Mitch Barnett (2020), Lachlan Fitzgibbon (2019), Danny Levi (2020), Nick Meaney (2018), Dylan Phythian (2018), Nathan Ross (2020), Sam Stone (2018) |
| Off Contract 2017: David Bhana, Brendan Elliot, Jacob Gagan, Tom Hughes, Peter Mata'utia, Will Pearsall, Josh Starling, Luke Yates |
