Title: David McCallum
Content:   Since 2003 McCallum has starred in the CBS television series NCIS as Dr. Donald "Ducky" Mallard, the team's chief medical examiner and one of the show's most popular characters. In Season 2 Episode 13 "The Meat Puzzle", NCIS Special Agent Caitlin Todd (Sasha Alexander) asks Special Agent Leroy Jethro Gibbs (Mark Harmon), "What did Ducky look like when he was younger?" and Gibbs replies, "Illya Kuryakin". According to the behind-the-scenes feature on the 2006 DVD of NCIS season 1, McCallum became an expert in forensics to play Mallard, including attending medical examiner conventions. In the feature, Donald P. Bellisario says that McCallum's knowledge became so vast that at the time of the interview he was considering making him a technical adviser on the show. McCallum appeared at the 21st Annual 
Title: Ducky
Content: Ducky (The Land Before Time), a Saurolophus in The Land Before Time film series ; Ducky Mallard, medical examiner in the TV series NCIS, played by David McCallum ; Ducky, a character in the film Toy Story 4 ; Ducky, a Splicer model in the video game BioShock 
Title: List of NCIS characters
Content:  Dr. Donald Horatio "Ducky" Mallard, D.H.L. (hon.) (David McCallum) was the chief medical examiner at NCIS and an old friend of Gibbs. He retired from his position as chief medical examiner and became an NCIS historian in season 16. His nickname "Ducky," which the NCIS team addresses him as, is a play on his last name Mallard. When he was younger he went by "Donnie." Mallard is Scottish-born; his cellphone's ringtone features bagpipes playing "Scotland the Brave." Mallard is a kind but eccentric character who often talks to the deceased ("their bodies tell me a great deal; it helps to reciprocate" ) and rambles to the living with 
Title: NCIS (season 1)
Content:  DirectedBy    = Peter Ellis ; WrittenBy     = Donald P. Bellisario ; OriginalAirDate= March 2, 2004 ; ProdCode      = 116 ; Viewers       = 12.82 ; ShortSummary  = Ducky responds to an emergency call when the Israeli Embassy sends a Royal Navy officer to NCIS for autopsy, only to find a gunman (revealed in later episodes to be recurring antagonist Ari Haswari) inside the body bag. As Ducky, Gerald and eventually Kate are held hostage in the autopsy lab, the director and Gibbs coordinate with an FBI strike team to negotiate their release. Meanwhile, Kate questions herself after she hesitates when presented 
Title: List of NCIS characters
Content:  In the episode "Spinning Wheel," Ducky is revealed to have a half-brother, Nicholas, who is 20 years his junior; his father Joseph and his ex-stepmother, Lorraine, are also introduced in that episode. Ducky owns a Morgan that he restored himself. There is a running gag in which Ducky and his assistant (first Gerald and then Jimmy) frequently get lost or meet a mishap when driving to the crime scene. In the Halloween episode "Witch Hunt," he and Jimmy are late after their van is pelted with eggs by youths in ninja costumes. According to Jimmy, Ducky chased the teens for several blocks and apprehended them and made 
Title: David McCallum
Content:  David Keith McCallum Jr. (born 19 September 1933) is a Scottish actor and musician. He first gained recognition in the 1960s for playing secret agent Illya Kuryakin in the television series The Man from U.N.C.L.E.. In recent years, McCallum has gained renewed international recognition and popularity for his role as NCIS medical examiner Dr. Donald "Ducky" Mallard in the American television series NCIS. With John Leyton and William Russell, he is one of the last living actors from the 1963 classic The Great Escape.
Title: List of NCIS characters
Content:  most of his time is spent in autopsy and attending crime scenes, he is sent on an important undercover mission in "Blowback". Ducky has a "second talent", as Gibbs calls it, to be able to read people, which he expands in season four by studying psychology. In cases without actual bodies, he assists by using his psychological training to decipher the clues left by the perpetrators and establish modus operandi and motive. Until season six, Ducky lived with his aging mother Victoria and her corgis. Nina Foch, who played Victoria, died in 2008. In "Broken Bird," Ducky reveals that his mother has moved out and has Alzheimer's 
Title: NCIS (season 9)
Content: Mark Harmon as Leroy Jethro Gibbs, NCIS Supervisory Special Agent (SSA) of the Major Case Response Team (MCRT) assigned to Washington's Navy Yard ; Michael Weatherly as Anthony DiNozzo, NCIS Senior Special Agent, second in command of MCRT ; Cote de Pablo as Ziva David, NCIS Junior Special Agent ; Pauley Perrette as Abby Sciuto, Forensic Specialist for NCIS ; Sean Murray as Timothy McGee, NCIS Special Agent ; Rocky Carroll as Leon Vance, NCIS Director ; David McCallum as Dr. Donald "Ducky" Mallard, Chief Medical Examiner for NCIS 
Title: List of NCIS characters
Content:  In "Silent Service," he accepts an offer from Gibbs and Vance of a part-time position as NCIS historian, since it will allow him to come and go as he pleases and still assist the team's investigations. When Special Agent Caitlin Todd asked Gibbs "What did Ducky look like when he was younger?" he replied, "Illya Kuryakin"—the Russian U.N.C.L.E. agent played by McCallum in the 1960s television show The Man From U.N.C.L.E. In the episode "Hung Out to Dry," it is revealed that he has a nephew, though no further information follows. Until season 15, David McCallum had appeared in every episode of NCIS except "Legend Part II."
Title: NCIS (season 2)
Content:  a young Navy lieutenant, and was eventually jailed for eight years as a result. They soon discover that the dead men were involved in the case, and it dawns on Gibbs that Ducky might be the next target. It appears that whoever has already carried out the gruesome killings is out for revenge against those who were involved in the case. Tony and Kate are assigned to protection detail, which means safeguarding Ducky and his elderly mother, but Kate makes a split-second mistake that leads to Ducky being kidnapped from his home during the night. The team must race against time 

Question: who is the actor that plays ducky on ncis?
Answer: David McCallum.