Thought I'd try something... I read the Sherlock Holmes story "The Blue Carbuncle" (an excellent tale) and immediately followed it by watching Jeremy Brett's performance of the same.
It's no exaggeration to say JB not only captured the spirit of Holmes, but made him *even more* engaging. A master.
The culprit, Ryder, was played by Ken Campbell, who I have just discovered was also mentor to Nina Conti, the ventriloquist performer currently on Taskmaster S22, who made a whole documentary about him after he died.
ROLLERCOASTER!