David Shackleton

From The Arthur Conan Doyle Encyclopedia
David Shackleton as old Dr. Watson in TV movie Sherlock Holmes (2010)
David Shackleton as Albert Einstein in movie Holmes & Watson (2018)

David Shackleton is a British actor who played Dr. Watson (the older one) in 2010 in the movie Sherlock Holmes while Gareth David-Lloyd played the younger Dr. Watson.

In 2018, he played Albert Einstein in Holmes & Watson with Will Ferrell as Sherlock Holmes and John C. Reilly as Dr. Watson.