Kittie was founded in 1996 by Morgan and Mercedes Lander. Fallon Bowman came along when she and Mercedes met in PE class. Their first bassist was Tanya Candler, but she left the band in the winter of 1996 (before the first album) due to health problems. She was replaced by Talena Atfield.
In 2001, Fallon Bowman left Kittie and started a new project called Amphibious Assault. Fallon's position on guitar was later replaced by Jeff Phillips, who previously worked as Kittie's guitar technician. However, he only played in live performances and was never seen in public as a full member of the band.
In 2002 Talena Atfield left the band. She was replaced by Jennifer Arroyo. In 2004 another change, the guitarist Lisa Marx replaced Jeff Phillips, because he played full-time again with Thine Eyes Bleed. This was followed (after a three-year hiatus, caused by disputes with her label Artemis Records) the third studio album Until the End.