Season 1 (1966)
5.94 avg 13 episodes 5.9 → 6.2
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Trapped by Loki/The Vengeance of Loki/The Defeat of Loki | 5.9 | 71 |
| 2 | Chained Evil/Sandu, Master of the Supernatural/Enchanted Hammer | 5.7 | 60 |
| 3 | The Enchantress and the Executioner/Giants Walk the Earth/Battle of the Gods | 6.3 | 57 |
| 4 | At the Mercy of Loki/Trial of the Gods/Return to Earth | 6.0 | 50 |
| 5 | The Absorbing Man/In My Hands, This Hammer/Vengeance of the Thunder God | 5.9 | 52 |
| 6 | Terror of the Tomb/To Kill a Thunder God/The Day of the Destroyer | 5.7 | 47 |
| 7 | The Grey Gargoyle/The Wrath of Odin/Triumph in Stone | 5.5 | 49 |
| 8 | The Mysterious Mister Hyde/Revenge of Mr. Hyde/Thor's Showdown with Mr. Hyde | 5.6 | 47 |
| 9 | Every Hand Against Him/The Power of the Thunder God/The Power of Odin | 6.2 | 46 |
| 10 | The Tomorrow Man/Return of Zarrko/Slaves of Evil | 5.9 | 46 |
| 11 | Enter Hercules/When Meet Immortals/Whom the Gods Would Destroy | 5.9 | 52 |
| 12 | The Power of Pluto/The Verdict of Zeus/Thunder in the Netherworld | 6.4 | 47 |
| 13 | Molto, the Lava Man/Invasion of the Lava Man/Living Rock | 6.2 | 50 |