Waterhouse and Hodgson weren't really under the radar as Waterhouse was an Origin and Kangaroos player and Hodgson was Man of Steel a couple of years before he joined us.
Hicks was sort of under the radar...followers of the NRL would have known he was good though, he had a good record over there and at his peak for speed (a few years before joining us) he was in the mix when people debated who was the fastest outside back in the NRL. He was still quick with us but not quick express, although still a very good all round winger.
Under the radar Aussies who were particularly good were Nat Wood and Darren Burns, who had been squad players in the NRL, and going back a few years earlier, Danny Nutley who came over as a young prop who had just had a few appearances off the South Queensland Crushers bench.