Final answer:
Van Helsing
Step-by-step explanation:
The person who unexpectedly tried to stop Dracula and save Mina from Dracula is Van Helsing. Van Helsing is a character in Bram Stoker's novel 'Dracula' and is depicted as a knowledgeable and determined vampire hunter. He is instrumental in the fight against Dracula and plays a crucial role in saving Mina from his influence.
Learn more about Van Helsing's role in stopping Dracula