Again, the two that follow turned out to be easier than I was expecting, but I shouldn't have been surprised.
I started with David Burke, not expecting to be done so quickly.
David Burke, one of my favorite Watson's (1934)
had an early appearance in a Sherlockian presentation when he appeared in The BBC's BERY in 1965 starring Douglas Wilmer ( 1920) as Holmes . .
Well, that was short and sweet.
So, it was on to Edward Hardwicke, again a favorite in the role of Watson
Edward Hardwicke (1932 - sadly only 2011)
participated in 2001's Enigma
(A little trivia about Enigma;)
The film was produced by Mick Jagger of the Rolling Stones. Jagger makes a cameo appearance as an RAF officer at a dance. He also lent the film's design department a four-rotor Enigma encoding machine he owned to ensure the historical accuracy of one of the props. The festivities around the London premiere of the film are shown in the 2001 documentary Being Mick. (source Wikipedia)
which featured the very lovely Kate Winslet (whom we have already connected with), but more importantly for our purposes, Nicholas Rowe (1966)
who played Sherlock Holmes in 1985's Young Sherlock Holmes
We made quick work of that one.
So, there you have it, there you are.