Callahan Walsh is an Executive Director at the National Center for Missing & Exploited Children (NCMEC) and co-host of America’s Most Wanted on FOX and In Pursuit with John Walsh on Investigation Discovery. His parents, John and Revé Walsh, co-founded NCMEC in 1984 after the abduction and murder of their first son, Adam.

Callahan frequently appears on national media platforms, including Good Morning America, CNN, and Fox News, to raise awareness about missing children and wanted fugitives. A tireless advocate, he brings passion and persistence to the fight against child victimization. His work is driven by a lifelong commitment to protecting children and giving a voice to families still searching for answers.