Biography
Andrew Bartels is a writer and producer. He has written episodes of the series NCIS (2003), including Tell-All (2011), and numerous episodes of the spin-off NCIS: Los Angeles (2009).
Bartels began working on NCIS: Los Angeles as a writer's assistant and story editor before advancing to writer, executive story editor and producer roles, serving as co-executive producer, supervising producer and executive producer across many seasons. He later rejoined the main NCIS series as co-executive producer and writer from 2025.
