According to Ott, the band's only consistent member in its 11-year history, Fifteen had a revolving door total of fifteen members by the time the group disbanded in 2000: Jack Curran, Mikey Mischief, Mark Moreno, Jean Repetto, Lucky Dog, Chris Flanagan, John Ogle, Jesse Wickman, Joe Cable, John Quintos, Scott Pierce, Jim Prior, Lisa D., Vanessa Bain and Ott himself.
Afterwards, Lucky Dog and Mark Moreno left the band and Curran returned, joined by Jesse Wickman on drums.
The group reformed in late 1997 with former members Ott, Mark Moreno, and Jean Repetto, along with Scott Pierce.
A new line-up existed briefly, recording the Hush EP and the album Survivor, but this version of Fifteen did not tour.
[6] Ott approached political issues in a more personal, "storyteller" mode than is typical of punk rock music.
[7] Fifteen addressed issues such as environmentalism, pacifism, homelessness, drug addiction, child abuse, racism and sexism.
Ott's lyrics were often written in the first-person narrative style, as he himself was a victim of child abuse and was homeless for much of the band's early career.
[citation needed] Love songs are featured prominently on the first three Fifteen albums, but are completely absent from later releases.