David McCallum (Then/Now)
As of my last knowledge update in September 2021, here is some information about David McCallum, both then and potentially up to the present in 2023:

Then (up to September 2021):
David McCallum is a British actor and musician who was born on September 19, 1933, in Glasgow, Scotland. He gained widespread fame for his roles in both television and film.

One of his most notable roles was as Illya Kuryakin in the 1960s spy series “The Man from U.N.C.L.E.” He played the role of a Russian agent, and the show became very popular during its run from 1964 to 1968.
In the 2000s, McCallum found a new generation of fans through his portrayal of Dr. Donald “Ducky” Mallard in the long-running TV series “NCIS.” His character was the Chief Medical Examiner for the Naval Criminal Investigative Service (NCIS) and became one of the most beloved characters on the show.
Now (as of 2023, based on projected information):
As an AI language model, I don’t have access to real-time data, so I can’t provide the latest information about David McCallum beyond September 2021. If he is still active in the entertainment industry, there may have been further developments in his career or personal life since then. To find the most current information about David McCallum, I recommend checking reliable sources like news articles or his official social media profiles.