KNBC Interview:
Colleen Williams interviews Dr. Erroll Southers on KNBC about his newly released memoir Inside the Castle Walls.

EXCLUSIVE: Hollywood Ventures Group, the global entertainment company launched by former Amazon MGM Studios executive Glenn Gainor and producer Sandy Climan, has optioned an upcoming memoir from a homeland security expert.
The company will seek to adapt Dr. Erroll Southers‘ Inside the Castle Walls, which publishes soon. The memoir provides a behind-the-scene perspective on the counterterrorism expert’s career, which was shaped by decades of experience at the highest levels of security and governance. Hollywood Ventures plans to develop the book for film and/or television.
USC Professor Erroll Southers is a real-life Jack Ryan. USC’s Associate Senior Vice President for Safety and Risk Assurance, has a new memoir out, titled ‘Inside the Castle Walls.’


Erroll Southers ’78, who was racially profiled as a kid in New Jersey, is now one of California’s leading experts in law enforcement, campus safety, and homeland security.
Dr. Southers provides analysis regarding the security concerns following the Michigan synagogue shooting.
Dr. Southers analyzes how security risks expand as the war widens in the Middle East.
Dr. Southers' career through 2023.
Copyright © 2026 Inside the Castle Walls - All Rights Reserved.