|Education:|| Frasier Street Elementary School
|First appearance:||Bye, Bye Birdie|
|Last appearance:||Dateless in San Francisco|
Aaron Bailey (portrayed by Miko Hughes), is Michelle's recurring classmate. He is the typical class bully, who tends to be annoying and rude (especially towards the members in the tanner household) at times. He pinches Michelle in one episode when they are in pre-school and Jesse tells Michelle to fight back. When the teacher punishes them, Jesse takes Michelle home. While that behavior is discontinued, his obnoxious ways do continue throughout the series.
Danny even remarks in a season seven episode that they are watching Aaron for several days "until his regular babysitter stops twitching". He first appears in "Bye, Bye Birdie" where it is about Michelle starting pre-school and Dave the Bird. Michelle accidentally lets Dave free. Aaron's hated Michelle ever since. Aaron's last appearance is in "Dateless in San Francisco".