Alvin is one of a kind character and is the star in Alvin and The Chipmunks. He has lots of enthusiasm and enjoys the challenging opportunities. Not too often does Alvin think before he acts. He is a very impulsive, charming, and musical chipmunk throughout the movie. In the movie, Alvin’s voice is that of Justin Long. Alvin is the most outgoing and athletic chipmunk that is always wearing a red sweatshirt with a yellow letter “A” on it. Alvin is the lead singer when the chipmunks perform on stage and therefore gets the most attention.