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