User blog comment:SayuriDarling/Magnus Chase and the Gods of Asgard Official Discussion/@comment-24883778-20150622152759/@comment-24883778-20150622212752

Okay, fair enough, now I see this guy is a bit too small to be Fenrir. It could be one of his sons, or one of Odin's boys. Oh, if that's either Geri and Freki, this may give us a hint about Magnus's godly parent.