The Dolphins' latest squad update includes new arrivals, departures, retirements and a mid-season move involving players from several clubs.
Selwyn Cobbo is listed from the Broncos, while Morgan Knowles comes from St Helens and Brad Schneider from the Panthers.
The wider changes include Josh Kerr from the Dragons, Harrison Graham from the Knights, Sean O'Sullivan from the Bulldogs, James Walsh from the Cowboys and Max Feagai from the Titans.
Oryn Keeley is identified as joining from the Storm during the season.
Mark Nicholls and Kenny Bromwich are both listed as retiring.
The update also records Jamayne Isaako from the Storm and Jake Averillo from Wests Tigers.