User blog comment:ImperiexSeed/Supernatural Mysteries/@comment-3481504-20120409204814/@comment-1509826-20120409205630

I think he's mostly comic releif, to add a lighter touch to this the most serious season, next to series five, also as most of the winchesters collagues are now dead, they need to add new hunters, or else the brothers would be completely alone.

And not all hunters can be the same or else they would be to similiar to the previous charaters, as such Garth, is a new idea, a only slightly competant hunter. Personally I quite like him,

He's also not that bad a hunter, his hearts in the right place, and you can't argue his techniques (or atleast some of them) don't work. It was also him who figured out the Shojo's next target in his last apperance.