NCIS

Donald P. Bellisario on mistakes CBS made in promoting NCIS

Charles Floyd Johnson on asking James Garner to play Mark Harmon's father on NCIS

Charles Floyd Johnson on incorporating Marie Kondo into NCIS

Charles Floyd Johnson on incorporating real organizations on NCIS

Charles Floyd Johnson on working on JAG, NCIS, and First Monday at the same time

Charles Floyd Johnson on the domestic and international success of NCIS

Charles Floyd Johnson on how NCIS got its start -- as a backdoor pilot/spin-off of JAG -- and why it was called NCIS

Charles Floyd Johnson on cast changes over the years on NCIS and how that has impacted the show

Charles Floyd Johnson on guest stars on NCIS

Charles Floyd Johnson on planning season arcs on NCIS

Charles Floyd Johnson on the look of NCIS and the "foofs"

Charles Floyd Johnson on Don Bellisario's departure from NCIS and how it impacted the show, and on the producers and showrunners on NCIS over the years

Charles Floyd Johnson on how long NCIS might run for and whether or not the show could go on without Mark Harmon

Charles Floyd Johnson on how he taught students about producing: by dissecting an episode of NCIS from pre to post-production

David McCallum on how he was cast as "Dr. Donald Mallard" aka "Ducky'" on NCIS

David McCallum on his first day of shooting on NCIS and on NCIS scripts

David McCallum on learning about pathology to play "Dr. Donald Mallard" aka "Ducky'" on NCIS

David McCallum on how he would describe his NCIS character, "Dr. Donald Mallard" aka "Ducky'" and on "Ducky's" retirement and becoming NCIS historian

David McCallum on production on NCIS during the COVID-19 pandemic

David McCallum on the then-current cast of NCIS

David McCallum on crediting the writers and producers for the success of NCIS

David McCallum on Mark Harmon's departure from NCIS and the relationship between "Gibbs" and "Ducky"

David McCallum on a reference to "Illya Kuryakin" on a season two episode of NCIS

David McCallum on "Ducky's" heart attack at the end of season nine of NCIS

David McCallum on "Ducky's" role as a mentor on NCIS

David McCallum on how long he plans to stay on NCIS