The Kaamdaarn
Kalus
Kansas
The Kansas Sheriff
Kassim
Kat O'Three Tails
Keanu
Kid Cruel
Kid Rabbit
King Sonic
Kintobor's Badnik Form
The Kintobor Computer
Doctor Ovi Kintobor
Kintobor's Underground Laboratory
The Knight
The Knuckles Metallix
Knuckles The Echidna
Kog The Mighty
The Kohenyu Graveyard
Emperor Koo-Door
Chief Kordon
Krakiota
Kritturs
Mayor Krouch
Kullconan Town
Princess Kupacious
Kurse The Sorcerer