Callahan Walsh is a dedicated advocate for criminal justice, best known for co-hosting America’s Most Wanted on FOX alongside his father, John Walsh. For over two decades, the show has played a crucial role in bringing fugitives to justice, and Callahan has been at the forefront of efforts to solve high-profile cases. He also co-hosted In Pursuit with John Walsh on Investigation Discovery, where he continued his mission of tracking down criminals and providing critical updates on key investigations.

As Executive Director of the National Center for Missing & Exploited Children (NCMEC), Callahan works closely with law enforcement agencies, including the U.S. Marshals, to locate missing children, prevent exploitation, and drive legislative reform. A regular presence on Good Morning America, CNN, and HLN, Callahan tirelessly advocates for child safety and works to enact the systemic changes needed to protect vulnerable children across the nation.