Alvin

Alvin "Alfred" Seville is the titular hero from Alvin and the Chipmunks film series and Alvin and the Chipmunks: The Boy Who Cried Monster book series. He is voiced by Justin Long as a teenager and Ross Bagdasarian, Jr. as a child, who is also voiced Simon.

Biography
Alvin is known to be a bit of a liar, such as telling a fake scary stories, even one where she told his two younger brothers Simon (Matthew Gray Gubler) and Theodore (Jesse McCartney), including their five friends Odious (Gregg Berger), Leonardo (Seth Green), Donatello (Rob Paulsen), Michelangelo (Gregory Cipes), and Raphael (Sean Astin) about ghosts living in a wrecked house roof. When Simon, Theodore, Odious, Raphael, Leonardo, Michelangelo, and Donatello didn't believe his story, he tried to prove it by sticking his left feet in the rose bushes and gave a huge scream, claiming the biter ate his toe and causes to scream into the house, telling his mother that Alvin's toes are gone, only to have his return to the house without wearing any footwear and revealed that his toes were never eaten after all.

Later when he went to the South Korean restaurant because he is part of a cooking program called "Undercover Chef" and ask the restaurant's employee to order a Korean spicy friend noodles and a cold aloe Vera drink with pulp. One day, when he came to the South Korean restaurant, he made a discovery that Hun (Eric Bauza) is a actually a monsters as he saw them transforms while eating a live sea worms, which leaves him completely horrified.

Personality
Alvin is known for being obsessed with monsters. He likes to make up his own stories about them and scare people with them for fun. His favorite victim is his youngest brother Theodore as he is always to easy to scare. Alvin likes to scare Theodore, always bullying, teasing, and harassing him by pretending to see monsters everywhere and telling him a scary stories until he begs Alvin to stop, which angering his younger brother Simon and their friends Leonardo, Raphael, Donatello, Odious, and Michelangelo. Of course, this does get Alvin in trouble with his mother Vinny (Janice Karman) and adoptive father Dave "David" Seville (Jason Lee) as his biological mother and adoptive father as his stories are doing permanent harm to Theodore and that he should be encouraging him to be brave instead of making him terrified and scared. He can get pretty annoyed with some things at times such as when no one was taking him seriously about Hun and how April O'Neil (Mae Whitman) let him down when she was meant to spy on the monsters with him. But he is very close to them no matter what. Alvin has a really good imagination to scare Theodore. He also finds it thrilling to spy on people, even if they aren't doing anything interesting.