Cy Kowalski is Chucko's older brother in eighth grade. He is more bullied than his younger brother. He only appeared in the episode "Big Brother Chad". He is voiced by Justin Shenkarow.
History[]
When his brother went to him about Vince, Cy was going to settle things with him and nearly did so, but Vince's older brother, Chad LaSalle stepped in and is revealed to by Cy's math tutor. Chad threatened to stop tutoring Cy in math if he kept bullying Chad's younger brother, Vince and his friends--this scared Cy into complying with Chad's demands, especially since they had recently started doing algebra.
When Chucko tries speaking up, Cy hushes him and apologizes for his actions before he gets his brother to fall back.