Amanii Misa is yet to make her NRLW debut, but the Cowboys have signed the forward to a three-year deal.
She played 17 times for the Souths Logan Magpies in the BMD Premiership after coming through the Broncos system.
Misa spent 2026 on a Top 24 contract with the Broncos, who were eventual grand finalists.
Sara Sautia has agreed to a two-year Cowboys contract after playing 17 NRLW games across six campaigns.
The versatile forward debuted for Brisbane in 2021, joined the Dragons in 2023 and has been part of extended Queensland State of Origin camp squads.
"Sara is a new-age hybrid middle or back-rower who is athletic, skilful and highly adaptable," Cowboys NRLW Head Coach Ricky Henry said.
"We believe there is significant upside to her game and she will bring tremendous value and depth to the squad.
"Amanii is a powerful middle forward who thrives in the contact and enjoys the tough part of the game.
"We are incredibly excited about her future and can't wait to grow and develop her game."