Thundarr the Barbarian (1980)

S1E3 Mindok the Mind Menace

Two thousand years ago, the dark wizard Mindok lost his physical form during the Great Cataclysm, but his brain remained intact. Now, he teams up with General Zoa and Zoa's loyal minions to hunt down cryogenically preserved scientists from the 20th century, referred to as the "Ice People." Their sinister plan is to create a new body for Mindok's surviving brain.