User blog comment:InvictusKris/Poll:Favorite Anime Buddy Monsters/@comment-25600444-20160423220013/@comment-24801290-20160423233213

You forgot Armorknight Eagle. Although everyone else in the show forgot him too.

Also Kenta Zakoyama has Garg as a "true buddy" as well. I'm not 100% sure but I think he showed up in multiple episodes.