Australia international half-back Todd Carney and forward Dave Taylor have been released by Catalans Dragons "by mutual agreement".
Carney, 30, had been linked with a move to St George Illawarra this summer despite having two years to run on his existing deal.
Taylor, 28, has already been offered a short-term deal at Canberra Raiders, following his Dragons exit.
Coaches Fred Marcerou, Benoit Albert and Sebastian Raguin are also leaving.
Marcerou was strength and conditioning coach along with Benoit Albert, while Raguin was football manager.
Catalans have also formally confirmed the release of Morgan Escare, who has already joined Wigan Warriors.