Motivated by family legacy and the desire to protect his heir and estate from the curse.
Mortimer was a personal friend and physician to Sir Charles, concerned about his welfare.
Sir Charles was the uncle and predecessor of Sir Henry, whose inheritance and safety are central to the plot.
Had a connection with Laura Lyons, which is a key clue in the investigation.
Feared the legendary curse of the Baskerville family and the dangers lurking on the moor.
Desired to safeguard his family and ensure the continuation of the Baskerville line.
Acted with responsibility and caution, though his death prevented further development of his moral decisions.