Kamella is a Magikoopa featured in the Wii video game Super Mario Galaxy. She appears as a boss multiple times (a total of three) - one time on the Space Junk Galaxy and two times in the Deep Dark Galaxy. She is possibly based around the Paper Mario character Kammy Koopa or possibly Kamek from Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
Oddly, Kamella's fangs point upwards rather than downwards as most Magikoopa's fangs tend to do. Some players call her as a 'witch'.