Alvin

Alvin is headstrong, charming, and musically talented. He can play the guitar, piano, and harmonica, as well as other instruments, not including his singing ability. He always seems to make up crazy plans to accomplish any challenge that comes his way, whether it is trying to help his brothers, preventing Dave from figuring something out, or getting out of a sticky situation. He is always on an emotional roller coaster ride and can have mood swings. Additionally he can be hesitant at first in some situations, but once he understands the circumstances, things are fine for him. Alvin can be impulsive which people, especially Dave, find bothersome. At times, Alvin's determination can be viewed as nuts.

Red tank top, red baseball cap, jeans, baseball boots

Dave (foster father) Simon (younger brother) Theodore (younger brother)

His friends and family, dancing, music, singing, hula hoops, skateboarding, gaming, sports, adventures, competition, pranks, girls, attention, fun, acceptance, being heard, being in charge, the color red, the color gold, thrills, company, his cap, getting into Simon's lab

His friends and family in danger, people getting upset with him, being lonely, being told what to do, losing his cap, school, homework, chores, yoga, tomatoes, spiders, being shut down, bullies