Guest Stars Kari Wahlgren voices Amora The Enchantress Nolan North voices Balder Nika Futterman voices Sif Clancy Brown voices Odin Fred Tatasciore voices Volstagg JB Blanc voices Heimdall John DiMaggio voices Eitri Steve Blum voices Beta Ray Bill Mick Wingert voices Skuttlebutt Uncredited Alex Désert voices Opening Narration