Brother Zero is the brother of Sister Zero. He is played by Dan Abramovici.
Brother Zero was once a villain following the steps of his sister. Brother Zero never really liked his job, while his sister loved being a villain and was always looking to be odder. After Odd Squad ranked the Total Zeroes at the bottom of the Oddest Villain List, Sister Zero became angry and later gained the power of multiplying by zero to look odder. Sister Zero wouldn't stop multiplying things by zero until she and brother found themselves in a white void. Finally, Brother Zero retired from villainy and became a florist, while his sister broke off ties with him and became the villain Crazy Eights.