Paea, who is currently playing for Hull FC, made his NRL debut in 2005 playing for the Sydney Roosters. The 29-year-old forward had played 56 first grade games before moving to England in 2012.
“Mickey will add some size, strength and experience to our forward pack,” Director of Football Michael Hagan said.
“He comes highly recommended and we are delighted to have him join our football club from next season.”
After four seasons in the English Super League, the Tongan international is looking forward to a return to the NRL.