Board Thread:General Discussion/@comment-25582553-20160313053020/@comment-5101200-20160316000135

Aaronbill3 wrote: also I should point out that these are test scripts for the voice actors eyes only. the info on them is not final nor is it concrete. we were never meant to be seeing it, so the facts didnt need to be right. info is likely to change before finalisation. water hazard is probably from orishan.

The quotes aren't where we got his information, the description is. The description calls him an Orishan, which is Water Hazard's species (so he's not from it), from the Andromeda Galaxy, which is Water Hazard's galaxy. Overflow is legit 100% renamed Water Hazard.