Eccentric People

What are some good examples of literary characters with eccentric characteristics?

I need some examples of characters from literature that are both eccentric and comical. They can come from any period in literature.

Public Comments

1. Dr. Watson & Sherlocke Holmes by Sir Author Conan Doyle Falstaff in several plays by William Shakespeare many good folk to be found in Charles Dickens' work Poirot by Dame Agatha Christie
2. John Yossarian from Joseph Heller's Catch-22. Christopher Boone from Mark Haddon's Curious Incident of the Dog in the Nighttime. K from Franz Kafka's The Castle. Algernon from Oscar Wilde's The Importance of Being Earnest. Oscar Wilde himself from The Real Life of Oscar Wilde (court transcript--he was on trial and convicted of sodomy).
3. Oscar Zeta Acosta, the drug-addicted lawyer in "Fear and Loathing in Las Vegas" Dr. Gonzo, Hunter Thompson's alter-ego in "Fear and Loathing..." Randle McMurphy, the mental patient in "One Flew Over the Cukoo's Nest" Most of the characters in "Running with Scissors" Smithy Ide, the overweight, cross-country bicyclist in "The Memory of Running" Tyler Durden, the narrator's soap-making fist-fighting friend in "Fight Club" (the book is by Chuck Palahniuk) Owen Meany, the always screaming tiny hero of "A Prayer for Owen Meany" (wonderful book) Ignatius J. Reilly, the 30-year-old sloth of a man still living at home with his mom who must go find a job in "A Confederacy of Dunces"