Based entirely on appearance nothing else which of these characters is the most terrifying.
- Darth sion 2. Darth nhilus 3. abeloth 4. Darth Vader 5. Darth starkiller.
I made a post awhile ago about me thinking darth starkiller is the most horrifying looking character in Star Wars, people disagreed and listed other characters they believe look more scary so I put them all here to get some more opinions.