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