The Herculoids - Season 1 - Eps 29: Return of Sta-Lak
Sta-Lak returns to Amzot seeking vengeance and equipped with robot duplicates of Igoo, Zok, and Tundro. He captures Dorno, Tara and Zandor and the others are forced to go into his volcano lair. The robot duplicates prove no match to the originals, even though the robot Igoo can spin at high speeds and has multiple arms, and the robot Tundro can fly. Sta-Lak enters a bubble and flees into a volcanic lavahole.
About The Herculoids

Title: The Herculoids
First Air Date: 1967-09-09
Last Air Date: 1968-01-06
Status: Ended
Rating: 7.2/10 (from 23 votes)
Language: EN
Seasons: 2
Total Episodes: 36
Network: CBS
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy
Production Companies: Hanna-Barbera Productions
Synopsis
Somewhere out in the deep space live the Herculoids. Humanoid Zandor, along with his wife Tara and son Dorno, lead a group of unique creatures: Zok the flying dragon, powerful simian Igoo, rhinoceros hybrid Tundro and two protoplasmic wonders named Gloop and Gleep. Together, they use their diverse super strengths to defend their utopian planet against attack from sinister invaders.
Cast

Don Messick
Gloop / Gleep

Virginia Gregg
Tarra

Mike Road
Zandor

Sparky Marcus

Ted Cassidy

Ted Eccles
Dorno