The 27-year-old has signed a one-year deal and will become Hull FC's fourth signing of the summer, subject to international clearance.
"I'm excited about the move," Michaels said on the club's official website. "I've heard good things about the fanatical fans and the proud history of the club. It's a big challenge for me.
"I've always dreamed of coming over to the UK. It's the right time now for me, but I've still got plenty of footy left in me."