Gus Griswald-Evil Genius/David/Zack
Gus' screaming voice-Kidaroo
Similar to Jay treats Prism like a baby.
Gelman: Man, I hate Gus Griswald so much, because he always tells my teacher on me! I want to get revenge on him! I will treat him like a baby!
Gus: Oh no! It looks like some trouble!
Gelman (singing): Hush little baby don't you cry! I'm going to sing you a lullaby!
Gus: (in Kidaroo voice) No! Stop it! Stop treating me like a baby! Stop it! Stop it! Stop it!
Gelman: If that diamond ring turns brass, I'm going to buy you a looking glass!
Principal Prickly: (over intercom); Gelman, please come to my office! You're in big trouble!
Gelman: So, Principal Prickly? What's up?
Principal Prickly: About that, I heard you sing a lullaby to Gus over the security cameras! Do you have an explanation for this?
Gelman: It's because I hate him so much! He always tells my teacher on me!
Principal Prickly: Gelman, you know we don't treat other students like babies! That's it! Go home now until you're ready to apologize to Gus!
Gelman's dad: Gelman, what has gotten into you?! You treated Gus like a baby! Why did you do that? That's it! You're grounded grounded grounded grounded for two weeks! Go to your room now!