Special Agent Leroy Jethro Gibbs,Dr. Donald "Ducky" Mallard
Which "NCIS" 
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medical examiner Dr. Donald Ducky Mallard, who knows it all because he's 
seen... [DOC] [TLE] Watch NCIS Online with Verizon Fios - Verizon TV & Movies [PAR] When a missing M16 officer is linked to