artist announced himself as Mike liked to keep things hush hush, a known pinsider for doing the art who is from Portugal, though very early days the art was going to be done by Mike's son

https://pinside.com/pinball/forum/topic/thunderbirds-pinball-art
also as more info comes out Thunderbirds is not so Australian designed
- art done by a pinsider in Portugal- parts copied and made by Chinese in China- possible playfield design by Jpop (USA), of at least one version- copied Ben Hecks (USA) boardsets design structure and software- final programming who knows?- final game design who knows?- sounds and music who knows?
- made in China by 90-95% Chinese