Fangface (1978)

S1E10 The Cuckoo Carnival Calamity

The gang heads to the nearby carnival to watch Harold "Hal" Hercules, the strongest teenager in the world. However, they discover that Hal has transformed into a monstrous figure with telekinetic eye beams. When they finally locate him, he appears to be in a bizarre trance. After breaking him free, Hal reveals the tale of the Great Swami Zorak (not to be confused with Space Ghost's nemesis). Zorak seems to be linked to Hal's strange behavior, prompting the gang to keep tabs on the swami and reveal his true intentions.