Swift the Hedgehog (Susan the Hedgehog)

Swift the Hedgehog is the only son of Sonic and Amy and one of the main characters in the Susan the Hedgehog series, often being either the deuteragonist or the tritagonist in most episodes. He was voiced by Tom Kenny. He is one of the main protagonists of the Young Mobians shorts.
== Traits ==
Swift is not as smart and didn't learn as many moves as his twin sister, but he’s faster and he has ice abilities. He and Ava are both oblivious to the fact that they are hindering their parents from destroying the Eggman Empire, as they treat their fights with them as just training.
== Personality ==
Swift likes to help others, much like his parents. However, he also likes to fight and train with his parents. He’s fine with Susan having a crush on him (Swift), as he loves her back just as much. People say he takes after his mother much more than his father.
He is an extremely playful boy who is, out of the 18 protagonists, the nicest of the bunch. He may sometimes fight with his parents, but that's only out of wanting to train with them, and he usually doesn't get angry at others. This is why everyone sees him as a "cool guy, both literally and figuratively". His favorite game is tag.
This doesn't mean he can't be serious in battle, though it's extremely rare to see him be like that.