In many mystery stories, there could be background characters whose names are only briefly mentioned or not at all. Maybe a witness or a neighbor who has a small role but whose name doesn't stick in the reader's mind.
One such character is Edward from Twilight. He's a vampire with a complex personality. Another could be Ebenezer Scrooge from A Christmas Carol, known for his transformation.
Sure, names of fictional characters matter. They can set the tone for the character, distinguish them from others, and sometimes even drive the plot. For example, a name like 'Dark Knight' might suggest a mysterious and powerful hero.
It depends on what you mean by 'deepest'. But some characters considered deep could be like Hamlet from Shakespeare's play, known for his complex internal struggles and philosophical musings.
One such character could be Hermione Granger from the Harry Potter series. She's constantly seen with a book in hand, eager to learn and expand her knowledge.