Ursona Major is a Gargantian ambassador.
According to him, he is one of the largest Gargantians there are, possibly due to his wide girth.
He is more open minded than a lot of his people and reaches out to the Galactic Alliance to request membership for his home planet of Gargantia. It is unknown exactly what made him reach out to the Galactic Alliance, however, he does not seem to like Gargantia's past. The Gargantian Militant Movement attempts his assassination to keep Gargantia from joining the Galactic Alliance.
Titanux is his aide.
He loves luxuries of all kinds and thinks that Gargantia has a lot to learn from the Galactic Alliance, especially in the areas of hotel management.
He likes Booster and Buzz better than Mira and XR as he does not even remember the names of the latter two, and he invites Booster and Buzz to Gargantia to show his people they are part of something new and exciting.