Bellatrix Lestrange (née Black) is the first female Death Eater introduced in the books. Aunt of Draco Malfoy and Nymphadora Tonks. She was introduced in Harry Potter and the Order of the Phoenix. She is the most faithful member of Voldemort's inner circle.
Corban Yaxley was one of Voldemort's favorite servants. He was often chosen to go on secret missions for the Dark Lord, including the attempt to convert Horace Slughorn. Yaxley was proficient at coercion, manipulation, and the Imperius Curse.
He doesn't trust Snape as Dumbledore does, but he believes that he can detect any disloyalty. Moreover, Voldemort regards Snape as highly intelligent and therefore ' as a true Slytherin ' a person whose top priority is to take care of himself. To his twisted mind, selfless equals stupid.
Snape's fierce devotion to and love of his childhood friend Lily, Harry's mother, is the foundation of that loyalty. After Harry Potter and the Half-Blood Prince, Snape's loyalty was a matter of intense debate among the fans.
Besides Dumbledore, he is also the only wizard ever known to be able to apparate silently. Voldemort was also said to fear one wizard alone, Dumbledore.
Voldemort's greatest fear is death and as a result a boggart takes the form of his own corpse. It is unsurprising that this is Voldemort's biggest fear. After all, he did split his soul up encasing it in various horcruxes just so to keep himself from dying.
She married Rodolphus Lestrange after leaving Hogwarts "because it was expected of her" to marry a pure-blood. However, Rowling stated in an interview that Bellatrix truly loved Voldemort.
He did not love anyone, and did not care to be loved. He felt nothing for his family, and only wanted his friends in school to rally around him because he wanted to hold power over them. Bellatrix Lestrange was obviously in love with him and worshiped him, but he only cared for her servitude, not her.
Grindelwald Is More Powerful and Cunning Than Voldemort
No one could possibly trick him in his mind, and of course, this leads to his undoing as Harry defeats him and reduces the wizard to nothing but ash. Grindelwald had more power in the Wizarding World up till the final moments of his life.
He hated his father for being a muggle, leaving his mother and her heritage, etc. Voldemort hated Dumbledore because he (Dumbledore) was his (Voldemort's) rival. Voldemort hated (or more feared and disliked) Harry because he (Harry) was his doom.
Albus Dumbledore is the most obvious person who can defeat Voldemort, outside of the Salazar Slytherin vs Voldemort debate, and the Dark Lord seemed to realize it. Rowling herself has explicitly stated in the books that Dumbledore is the only person Voldemort fears and recognizes as a genuine threat to his own power.
On Lord Voldemort as a psychopath or sociopath
“There are psychologists who would argue there's really no difference, and in fact, if you consult the diagnostic manual, it would really lump them under one category, antisocial personality disorder.
Draco Malfoy - Voldemort
In this game, it becomes clear that Draco Malfoy's Boggart is Lord Voldemort. Draco's fear of Voldemort likely comes from different reasons than others have. Most fear Voldemort taking over the world. Draco fears Voldemort intimidating and manipulating the Malfoy family.
Voldemort's weaknesses are arrogance, aforementioned fear of death, and total disregard for things that he does not understand, all of which eventually contribute to his downfall.
Albus Dumbledore
It is not certain what the specific fear is as he is not fearing the death of his sister as she is already deceased and it is suggested that Dumbledore fears that it was him who directly killed his sister in the conflict or that he fears the loss of control that lead to his sister's sudden death.
It was most certainly Severus Snape, even though Bellatrix Lestrange believed and proudly insisted that she was the one, and Voldemort probably lied to her about this just to make her happy. As far as Voldemort knew, Snape was his most loyal, most powerful, and most useful servant.
Voldemort had opportunities to make different choices, yet his snake-like eyes were fixed on one goal: a world where magic is might and pure-bloods reign supreme. It's a world that glories in cruelty, sees death as failure yet values life lightly, and denies love, kindness and tolerance.
The acclaimed author explained that Harry paid tribute to Snape because of "forgiveness and gratitude." Though Snape bullied Harry, he also saved him.
Now, as firmly established, Snape was not the greatest fan of Harry, but that didn't mean that he ever stopped loving Lily. Dumbledore was surprised that Snape seemed to care for the boy. With a swish of his wand, Snape conjured up a Patronus – Lily's Patronus, a doe. 'Always,' he said.
Severus Snape: Doe
This indicates that Lily also had a doe patronus. Snape's patronus also leads Harry and Ron (Rupert Grint) to the sword of Gryffindor, though the boys don't know who it belongs to. The doe represents loving caretakers and determined protectors.