|Prince Antimony "Arron" von Koopa|
|Living Town||Dark Land|
Antimony Koopa is a koopaling with the element antimony. He is younger than Matthew von Koopa, but older than Lavora Koopa.
Antimony appears to look like Jinkesse Koopa, with Justin Koopa's head. He has Bowser Jr.'s hairstyle. His eyes are red. His shell is red with blue rings.
- He is the oldest of The Element Koopas.