Kamek

Kamek (referred to as Magikoopa on occasion) is an old yet powerful Magikoopa, adviser to Bowser and a high-ranking member in the Koopa Troop. He is the arch-enemy of Yoshi and serves as one of the secondary antagonists in the Mario franchise, alongside Bowser Jr., and is one of the two main villains of the Yoshi franchise, alongside Baby Bowser. He is also Baby Bowser's primary caretaker, and he continues to look after his master, even in the present day. Kamek's name comes from the name for the Magikoopa species in Japanese: Kamekku (カメック), which is derived from kame, the Japanese word for "turtle."

Various unnamed Magikoopas appearing in the Mario franchise are presumed to be Kamek, often due to the parallels between their relationship with Bowser or their position in the Koopa Troop. This relates to confusion with the Japanese games where the character is only given a unique name in Super Mario RPG: Legend of the Seven Stars. Many appearances of individual Magikoopas, however, specifically call back to Kamek's behavior in Super Mario World 2: Yoshi's Island in having him power up bosses, likely making these the same individual.