Theodore, the voice of Jesse McCartney, is a shy, loving, sensitive, gullible, and trusting chipmunk. He tries to get away with everything and always acts like he is an innocent little guy. |
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He is easily manipulated by Alvin and gets suckered into doing things. Theodore is the chubby chipmunk that is always wearing a green sweatshirt. He is constantly craving a snack and will try to eat anything in sight. |
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He is often the one that gets blamed for all his brother’s choices and gets thrown into the middle of things. Alvin gets Theodore to do things by bribing him with food, and Theodore bites for all the chances he can get! |