Voiced by: Elliot Gould
Mr. Stoppable inspired his son to be an actuary but then showed him how risk could lead to rewards. He also showed his skills in Mathter and Fervent when he used his actuary skills to defeat the math villain terrorizing Ron. In his own words to the villain, "I did the math". As a result he became the subject of Ron's hero paper and gets an "A+" from Mr. Barkin, who exclaimed "Your Dad rocks!"