"Looks like we might be due for a big ol' storm of chaos!" -Discord.
Discord (voiced by John de Lancie) is the spirit of chaos and disharmony and is a former antagonist from My Little Pony: Friendship is Magic. He once brought chaos to the Land of Equestria causing sadness and evil into the world, but he met his end when Princess Celestia and Princess Luna turned him into stone. Many years later, he escaped his prison and hid the Elements of Harmony, and tricked Twilight Sparkle, and her friends into being the opposite of their true selves. However, Twilight helped remind her friends who they really were, and Discord was defeated and turned back into stone. Later on, he was released again, but he eventually became reformed by Fluttershy. This happened when she made him her friend.
- Discord will become one of Jeffrey's dangerous enemies in Jeffrey & Friends meet Bambi. He will maniputlate Ronno into wanting power and revenge at Jeffrey, Twilight Sparkle and their friends.
- Discord will become Jaden's enemy in the Jeffrey, Jaden & Friends meet Indiana Jones saga.
- Discord will appear with the villains in Jeffrey & Friends in Fantasmic!.
- Discord seems to be good friends with Set the God of Chaos. (But what did you expect? They both represent chaos, so it would be natural for two spirits of chaos to be friends.) But Discord later reveals that he felt like Set wasn't a real friend to him and that he was just using him.
- Discord will appear in the Jeffrey & Friends' Adventures Chronicles episodes Love Conquers All Part 1 and Love Conquers All Part 2. He'll manipulate Collette's sister Danielle into making her sister and Patch break up.
- After he reforms, Discord may become a ally to Jeffrey and Jaden.
- In the Jeffrey, Jaden & Friends' Storm Adventures series, Discord might be dubbed by Tigerman531.
- In the Eds' Adventures series, Discord is Chaos' son and Darkseid's most trusted right hand. After he reforms, Discord will leave Darkseid.
- Discord will become Aaron's enemy in Aaron's Adventures in My Little Pony Friendship is Magic: The Return of Harmony.
- Discord will become Arik's enemy in Arik's Adventures in My Little Pony: Friendship is Magic: Keep Calm and Flutter on. after this he's redeemed, he will will give out information for Arik, on Lucifer's newest alley: A Monstrous Mutation he created but locked away called, Destroyah.
- Discord is an old friend of Chaos (Aladdin).
- Discord will return in Jeffrey, Jaden & Friends' Storm Adventures of My Little Pony: Friendship is Magic - Princess Twilight Sparkle, and Jeffrey and Jaden still don't trust him despite being reformed.
- Discord is good friends with Ralphie the Fire King since he is a reformed villain.
- Discord becomes sick in Jeffrey, Jaden & Friends' Storm Adventures of My Little Pony: Friendship is Magic - Three's A Crowd.
- Discord returns in Jeffrey, Jaden & Friends' Storm Adventures of My Little Pony: Friendship is Magic - Twilight's Kingdom. At the end, he truly reforms and happily joins the team.
- Discord makes his debut as a member in Jeffrey, Jaden and The Adventures of TinTin (2011).
- In the Thunderbolts Adventure Series, Discord acts like a father figure to Courtney after he reforms. He cares for her like his own daughter and Fluttershy will be like a mother figure to Courtney as well.