Terro-Beasts
- Red Spark (Episode 1)
- Jikiro (Episodes 1, 22, 25)
- Destro-King (Episodes 2 and 12)
- Dorola (Episode 3)
- Wagilar (Episode 4)
- Spyler (Episodes 4 and 12)
- Dragon King (Episodes 7 and 12)
- Gilmoras (Episode 7)
- Gellderah (Episode 8)
- Garoga Spider (Episode 9)
- Goro-Gorilla (Episode 9)
- Spider Uros (Episodes 9 and 25)
- Jipudoro (Episode 10)
- Shadorah (Episode 10)
- Barakidon (Episode 12)
- Garoborg (Episodes 13 and 25)
- Dedragon (Episode 14)
- Zandolla (Episode 15)
- Moguranda (Episodes 16 and 25)
- Barugas (Episode 17)
- Gondargilas (Episodes 18 and 19)
- Goramu (Episode 20)
- Jellar (Episode 21)
- Kastam-Jellar (Episode 21)
- Bakugon (Episode 23)
- Needlar (Episode 24)
- Kabutoji (Episode 25)
- Grotogauros (Episode 26)
- King Ghidorah appeared in Episodes 5 and 6. In these appearances the space dragon was discovered being controlled by the Garogas. He is also the only monster in the series (excluding Godzilla) that didn't die in the series.
- Gigan appears in Episode 11. The cyborg has lost the ability to fly or use his buzzsaw, but has been given the power to cause explosions with his scythes. He fights and is briefly defeated by Godzilla, but after reviving he is killed by Zone Fighter at the end of the episode.
Read more about this topic: Zone Fighter, Characters