Bob McFadden
Lynx-O / Snarf / Slythe / Grune the Destroyer / Ratar-O / Captain Shiner / Topspinner (voice) (as Robert McFadden)
Earl Hammond
Jaga / Mumm-Ra / Vultureman / Snowman / Turmagar / RoBear Bob / Nisida / Hammerhand (voice)
Larry Kenney
Lion-O / Jackalman (voice)
Lynne Lipton
Cheetara / Wilykit (voice)
Earle Hyman
Panthro / Pilot / Guard / Cruncher (voice)
Peter Newman
Tygra / Wilykat / Bengali / Monkian / Hachiman / Rambam (voice)
Gerrianne Raphael
Pumyra (voice)
Another thrilling adventure for the ThunderCats, when they stage a daring rescue attempt that tests them to their ultimate limits. After the destruction of Thundera, Mumm-Ra discovers that three Thunderians have survived and are living in peace with their rescuers, the Berbils. Mumm-Ra enlists Hammerhanc and his wicked crew to capture them, and uses his new captives to lure the ThunderCats to the one place that will rob them of their powers - Fire Rock Mountain. Determined to save their fellow countrymen, the ThunderCats rise to the challenge - but is the challenge too great?...
