Team Krono...
Kishon The Fox is basically a dark maroon fox, 13 years old, and has power over electricity. He is a half-cyborg, as revealed in Search for the Long-Lost Parents aka SFTLLP.
Rushnen The Hedgehog, or as many call him, Rush, is 15 years old, and has power over fire. He isn't fast or strong, but he has some smarts. He is Kishon's adopted brother.
Smakedon The Echidna, or Kedon, is 14 years old, and has power over air. He is the guardian of the Ability Emeralds, and is considered a brother as well.
Ketas The Hedgehog, or Ket, is 13 as well, and has power over darkness and earth. She was kidnapped in the past, and made into a mutant. More details in SFTLLP. Considered sister after she was found.
Team Shock...
Zap The Echidna is 17 years old, and has power over the lightning. He is a Storm Bearer, an extinct species of Echidnas with power over lightning...
Rapper The Fox is 13 years old, and has power over darkness. He is a ninja, finding his ever so precious sword outside a hospital, beckoning to him...
Cloud The Rabbit is 11 years old, and has power over light. She is the purest of all souls, and is religious. She is also Kishon's love interest.
Fier The Hedgehog is 15 years old, and has power over fire. He is the brother of Cloud, and cares for her so. He isn't worried about her being with Kishon, and has taken a good friendship with Rush.