Mark Harmon Explains Why His Son Isn't Returning To Play Young Gibbs On NCIS: Origins

NCIS: Originsexecutive producer and narrator Mark Harmon explains why his son, Sean, isnt returning as Young Gibbs for the CBS prequel.

https://screenrant.com/ncis-origins-why-sean-harmon-not-returning-young-gibbs-explained-mark-harmon/