Tutuila played for Easts Tigers and Souths Logan in the Queensland Cup, while Bateman has played in Super League for Crusaders.
All Golds coach Brad Hepi said: “Last year, James Tutuila was a handful for our defence. Every time he got the ball he constantly broke our line, got in behind our line. He also banged us in defence, which is exactly what I want from the guys this year.
“Ashley Bateman is exactly the type of aggressive competitor that I want the team next year to epitomise. He has a never say die attitude and is up for the fight.”