Christopher K. Mellon is a former U.S. government official and member of the prominent Mellon banking family who served in senior national security positions under both the Clinton and George W. Bush administrations. He served as Deputy Assistant Secretary of Defense for Intelligence and as Minority Staff Director for the Senate Intelligence Committee, giving him extensive access to classified national security programs.

Mellon emerged as a key UAP policy advocate after leaving government, joining Tom DeLonge's To The Stars Academy of Arts and Science (TTSA) alongside Luis Elizondo. In this capacity, he played a central role in arranging the delivery of the three classified Navy UAP videos (FLIR1, GIMBAL, GOFAST) to The New York Times, which published them in December 2017. This act was pivotal in the modern UAP disclosure movement.

Mellon has written extensively on UAP as a national security concern, including op-eds in the Washington Post arguing that UAP represent a genuine strategic threat requiring coordinated government response. He has been a consistent advocate for Congressional UAP oversight legislation and has worked directly with members of Congress and their staffs to develop UAP-related legislation including the UAP Disclosure Act.

His national security credentials and bipartisan relationships have made him one of the most effective advocates for institutional UAP investigation within official Washington circles. He has stated that he personally reviewed classified materials during his government tenure that convinced him UAP represent a genuine, unexplained phenomenon.