| 2018 Gains: Gerard Beale (Cronulla Sharks, 2020), Manaia Cherrington (Cronulla Sharks, 2018), Tohu Harris (Melbourne Storm, 2021), Matiu Love-Henry (Brisbane Broncos, 2018), Leivaha Pulu (Gold Coast Titans, 2020), Zac Santo (Canberra Raiders, 2018) | | 2018 Losses: Matthew Allwood (released), Erin Clark (Canberra Raiders), Bureta Faraimo (Hull FC), Kieran Foran (Canterbury-Bankstown Bulldogs), Charlie Gubb (Canberra Raiders), Ryan Hoffman (released), Jacob Lillyman (released), Tuimoala Lolohea (Wests Tigers), Ben Matulino (Wests Tigers), Ofahiki Ogden (Canterbury-Bankstown Bulldogs), Toafofoa Sipley (Manly Sea Eagles), Bodene Thompson (released), Manu Vatuvei (Salford Red Devils) |
| Re-Signed: Blake Ayshford (2019), James Gavet (2019), Ata Hingano (2020), Shaun Johnson (2019), Mason Lino (2019), Charnze Nicoll-Klokstad (2019), Nathaniel Roache (2018), Ligi Sao (2019), Patrick Sipley (2018), Lewis Soosemea (2019), Joe Vuna (2019) |
| Off Contract 2017: Albert Vete |
