Ghaleon was a character from a game from my early boyhood, Lunar: The Silver Star. I loved the game--it remains one of the most epic love stories I remember. And I loved this character of Ghaleon--so cool, so passionate (and religious! ...so to speak).
When I started playing games where you had to create your own persona, I chose to model mine off of Ghaleon. However, I've been playing myself vicariously in these types of games for years and years and years now, and so I'm not really playing 'Ghaleon'--I'm playing myself.
Ghalleon has been my adaptation of Ghaleon to be my vicar in games for a while now. I chose Helseth as my surname in FFXIV because of euphony, and it was a slight nod to another monumental game for me--The Elder Scrolls III: Morrowind. (It's only a minor character--King Hlaalu Helseth--but like I said, I enjoyed the euphony with Ghalleon).