Mark Harmon, renowned as Leroy Jethro Gibbs on NCIS, shares poignant words in memory of David McCallum, who portrayed Donald “Ducky” Mallard and passed away at the age of 90 due to natural causes. Harmon reflects on McCallum’s remarkable life, expressing admiration for the impact he left on the show’s cast. The duo, pivotal to NCIS since its inception, created enduring moments on and off-screen. NCIS’ Instagram post echoes the sentiment, honoring McCallum’s legacy as a gifted actor and author. In the wake of this loss, the warmth, humor, and stories McCallum shared will be dearly missed by all who had the privilege of knowing him. Our heartfelt condolences extend to McCallum’s family and friends during this challenging time.