Simon Seville

Simon Seville is the deuteragionist of the entire Alvin and the Chipmunks franchise. He is voiced by Ross Bagdasarian, Jr.

Why They Call Him "The Smart One"

 * 1) Like two certain cartoon characters he's a genius and can invent anything despite being a kid.
 * 2) He is a well-written voice of reason to Alvin when he cooks up a scheme.
 * 3) Unlike Alvin, he's very mature for his age as seen in many adaptions of the franchise.
 * 4) He has a well-written relationship with his brothers.
 * 5) Despite being a Butt-Monkey, there are many times where he can be very aggressive when pushed too far, for example:
 * 6) * In Alvin and the Chipmunks: The Squeakquel, when Alvin reveals that he has to be at a football game when he is supposed to be at a sing-off with his brothers, his response is by draging Alvin into a dumpster and to beat him up without Theodore seeing.
 * 7) Overall, he's one of the well written memorable characters from the entire Alvin and the Chipmunks franchise.

"Squeaky" Qualities

 * 1) He can be a know-it-all at times
 * 2) He was flanderized in the infamous reboot where he becomes a jerk who abuses Alvin, though that can be justified since how he treats Theodore.