She met future bandmates Maya Ford, Brett Anderson and Allison Robertson in junior high school.

[3] Before the release of The Donnas' sixth studio album Gold Medal, Castellano developed tendonitis and in October 2003, she had surgery for it.

A shoulder problem forced Castellano to withdraw from The Donnas' tour following a show on December 27, 2008 at the House Of Blues in Anaheim, California.

[8] As a Frederick Sheldon Traveling Fellow at Harvard, she designed a legal research project on the way cracks in domestic and international legal frameworks lead to a deprivation of rights for the residents of areas that are de facto no man’s land, created by protracted conflicts, focusing on East Jerusalem and eastern Ukraine.

[8] She is currently an attorney working at the Texas Office of Capital and Forensic Writs (OCFW) which serves as a post-conviction public defender.