Stanley Yelnats
One famous literary character with a palindromic name who had to dig into his problems is Otto in "A Man, A Plan, A Canal, Panama!" by Ben H. Winters. It is a mystery novel where Otto finds himself in a suspenseful situation and has to work through his problems through a series of adventures.
One of the the most famous glens in the Scottish highlands is the palindromic glen, Glenelg.
He created the famous detective Sherlock Holmes, as well as the surrounding well-known characters, such as Dr. John Watson, Professor Moriarty, Irene Adler, etc...
Macbeth [c. 1014-August 15, 1057] was a historical figure, and a character in works of literature and music. In terms of literature, his most famous use as a literary character was by William Shakespeare [Baptized April 26, 1564-April 23, 1616]. The Shakespearean play was called 'The Tragedy of Macbeth'.
Daedalus - from bronze aged Greek mythology. He was very good at inventing fanciful things which puts him in the realm of gadgetry science fiction.
Super Mario is the most famous character
Harry Potter is the famous character in the novels of JKRowling
Some famous literary figures after Chaucer include William Shakespeare, John Milton, Jane Austen, Charles Dickens, and Virginia Woolf.
sherlock homes
Bloomsbury Group The Inklings
Sonic the Hedgehog is more famous as a video game character amongst a global audience, with widespread recognition due to decades of popularity in the gaming industry. Hamlet, a character from Shakespeare's play, is known more in literary and academic circles, with cultural impact mainly in the realm of classical literature.
Sonic
Arguably, the most famous character would be the titular Harry Potter.