Eddy is a little on the short side, which is referenced throughout the series as a running gag. Despite his low stature, Eddy is very loud and overbearing, leading to some speculation that he may have a "Napoleon" complex. He often tries to trick the kids in the Cul-de-Sac into giving him their money or Jawbreakers. He is best friends with Ed and Edd, and the unofficial leader of the trio.
Arrival of Planet Fusion
When the first Terrafusers are entering the Earth's atmosphere, the three Eds see one pass by their neighborhood. Edd wonders what it could be and Ed opines that it looks like a giant jawbreaker.
War Against Fuse
The FutureIn the Future, Eddy is the only character left of the three Eds, and apparently the only character from his series as a whole (due to the absence of the Kankers) to have survived up to after the fall of Tech Square.
Note: The following events take place in the no longer existing Future, not the Past.
The Future: During the war, Eddy sold some x-ray spec's to Urban Ranger Joey for a dollar, but never received his money. He sends the hero to talk to Joey. Joey explains himself and says that a Dire Hydra stole his wallet, so he can't pay back Eddy. Joey has the hero recover his wallet from a Dire Hydra, but it turns out to be empty. He then has the hero give Eddy a sweat sock. Eddy then gives the hero a dollar and a quarter. The hero gives the money to Joey. Ranger Joey keeps the quarter and tells the hero to return the dollar to Eddy. However, there was a glitch with this mission that still left the mission task as "Defeat the Dire Hydras, Wallet: 0/1" even when the player had the wallet.
The Future: Eddy has the hero deliver some stuff to people around the world. He sends the hero to deliver some spark plugs to Mandark, stating that he needs them for some kind of experiment. The hero returns to Eddy for another pick-up; this time it's to the Candy Pirate, Licorice Lips. The hero delivers some lollipops to him successfully. Finally, Eddy has the hero return one last time for another pick-up. He requests that the hero give a glass of milk to Samurai Jack and explains that it will expire that very day. The hero delivers the milk just in time and Eddy wants the hero to return for a reward, showing that he is at least somewhat grateful and cares that the player has helped him twice.
The Future: Recently the monsters in the Park 'n' Flush trailer park appear to be scaring away Eddy's customers. Trying to keep his business going, he requests the help of the hero again. The hero arrives at the trailer park and defeats four Dire Hydras and six Newsprint Ninjas. The hero returns to Eddy for yet another reward. He thanks Edd for building the cardboard castle and since Ed isn't around, he's gonna call the hero if the monsters come back around!
In the Past, he is inside the Peach Creek Commons in the cardboard fortress, which protects the Cul-de-Sac from Fusion attacks (exactly in the same spot he was during the future). After the fortress was built, he decided to make himself the king of the Cul-de-Sac. Unlike most of the characters, Eddy isn't very concerned about the Fusion invasion, which he sees as little more than a business opportunity. Eddy acts as a supplier of common household items and weapons to fight Fuse and wants in exchange cash or items of greater value. Fusion Eddy is one of two Fusions that players face three times, the other being Fusion Edd.
- It was revealed in a mission that he has a crush on Frankie (just like Mac and Bloo from Foster's).
- He seems to think Mandark is a nerd and that Licorice Lips is a weirdo, though has respect for Samurai Jack.
- He doesn't seem very concerned about the disappearances of the other Ed's in the Future.
- He is using the war against Fuse to make money and doesn't care about the war.
- He was the first original Cosmix Nano you get in the game.
- As of the "New Beginning" creation, he is the second Cosmix Nano, the first being Alien X.
- In the show, his skin tone is pinkish, but in , his skin is almost the same color as Edd's.