Horde
- Lead by Horde Prime
- Vast, interstellar empire bent on the domination of various worlds across the universe
- Summoned to Eternia by Morgoth, defeated by the Sorceress of Castle Grayskull
- Returned years later, lead by Hordak, to wage war against the city of Eternos
- Defeated by the Royal Soldiers of Eternos & the magic of Castle Grayskull
- Went to Etheria, attacked & conquered that world, opposed by the Great Rebellion
- Horde Prime
- Hordak
- Shadow Weaver
- Mantenna
- Leech
- Grizzlor
- Scorpia
- Modulok
- Rattlor
- Tung Lashor
- Imp
- Multi-Bot
- Admiral Scurvy
- Mosquitor
- Entrapta
- Vultak
- Wrap Trap
- Octavia
