The 30-year-old Carter brings a vast array of experience from leagues around the world, including stints in Europe, the ANBL with the South Dragons (winning a championship alongside Mika Vukona in 2009), Perth Wildcats and at the end of last season he helped the Adelaide 36ers in to the post-season.
Breakers head coach Dean Vickerman had no doubt he got the right player for the right fit as the club announced the acquisition today.
"We were always looking for a combo back-up guard capable of playing both the '1' spot and with the players we have lost this year a player that is a threat from the perimeter as well," Vickerman said.
"Rhys fits that description, he is experienced and at 30 years old he has been a pro for ten years and has been on very good teams. There is an x-factor about him, he has the ability to make a defensive play or hit a big shot."
Carter is currently in Australia and said the decision to join the Breakers was easy.
"From the outside, it seems like a really well-run and professional club, and the team looks to be a real contender I think," Carter said. "I wrote to Dean a week ago to gauge interest, and when he called to discuss the role it sounded perfect for me and I jumped at the opportunity.
"I was only a day or two off signing with a club in Europe, but I'm glad I got the call in time."