Hull KR have signed Joe Keyes, Rowan Milnes, Elliot Minchella, Matthew Storton and Anesu Mudoti from Bradford Bulls on three-year deals for a "substantial fee".
Half-back Milnes, 20, has been loaned back to the Bulls for the 2020 season.
Minchella, 23 started his career with Leeds Rhinos, while fellow back-rower Storton, 20, won the club's young player of the year award for 2019.
Half-back Keyes, 24, played in Super League for London.
Prop Mudoti, 18, did not make a senior appearance for the Bulls.
Half-back Milnes, 20, has been loaned back to the Bulls for the 2020 season.
Minchella, 23 started his career with Leeds Rhinos, while fellow back-rower Storton, 20, won the club's young player of the year award for 2019.
Half-back Keyes, 24, played in Super League for London.
Prop Mudoti, 18, did not make a senior appearance for the Bulls.