Hanson is the mechanic of the Grandis Gang. He has exceptional skills; he built the Gratan and lots of other devices. He is in love with Electra, but alas, his love is not returned. Jean and Hanson become close friends thanks to their mutual fascination with technology, they spend a lot of time together discussing technical details and ideas about mecha.

In the epilogue, Hanson has become an industrial giant, rich and respected-he lives in fictional world's equivalent of the Chrysler building. Having made his fortune as a manufacturer of automobiles, he still claims that he will find a girlfriend someday.

Source: Wikipedia