Half-back or loose forward Ryan Millington joins the club from North West Counties Premier Division side Widnes West Bank Bears. The 28-year-old was named as North West Counties Man of Steel last season.
He has also spent some time with Widnes RUFC.
Australian-born utility forward Micah Manuokafoa has also played for Widnes RUFC, and is the son of current Widnes player Manase Manuokafoa.
2Ryan and Jonny will give us some much needed experience as they’ve both had a few seasons at League 1 level,” said Scorpions coach Mike Grady.
“Micah is young but he’s strong and has been brought up in rugby league. He’s been looking for this chance and I know he won’t waste it.
“All three are looking forward to hopefully playing at Cardiff Arms Park against North Wales Crusaders in the Big Welsh Derby on Sunday 10th May but they’ll be wanting to help us to a win or two before that.”