Question: what is ducky's first name on ncis
Answer: Actor Character Season 5 6 7 8 9 10 11 12 13 14 15 Mark Harmon Leroy Jethro Gibbs Main Sasha Alexander Caitlin `` Kate '' Todd Main Guest Guest Guest Michael Weatherly Anthony `` Tony '' DiNozzo Main Pauley Perrette Abby Sciuto Main David McCallum Donald `` Ducky '' Mallard Main Sean Murray Timothy `` Tim '' McGee Recurring Main Cote de Pablo Ziva David Main Lauren Holly Jenny Shepard Main Guest Guest Rocky Carroll Leon Vance Recurring Main Brian Dietzen Jimmy Palmer Guest Main Emily Wickersham Eleanor `` Ellie '' Bishop Main Wilmer Valderrama Nicholas `` Nick '' Torres Main Jennifer Esposito Alexandra Quinn Main Duane Henry Clayton Reeves Guest Main Maria Bello Jacqueline Sloane Main