Classic Literature:
* Robin Hood: Legendary outlaw from English folklore.
* Rhett Butler: Charming and cynical protagonist from "Gone with the Wind" by Margaret Mitchell.
* Romeo Montague: Star-crossed lover from Shakespeare's "Romeo and Juliet".
* Rumpelstiltskin: Cunning and mischievous fairy tale character known for spinning straw into gold.
* Rebecca: Mysterious and deceased first wife of Maxim de Winter in Daphne du Maurier's "Rebecca".
Fantasy:
* Rhaegar Targaryen: Noble and tragic character from George R.R. Martin's "A Song of Ice and Fire" series.
* Ron Weasley: Loyal and lovable friend of Harry Potter in J.K. Rowling's "Harry Potter" series.
* Regan MacNeil: Possessed child from "The Exorcist" by William Peter Blatty.
* Rincewind: Cowardly wizard from Terry Pratchett's "Discworld" series.
* Ravenna: Evil queen and antagonist in "Snow White and the Huntsman".
Science Fiction:
* Rick Deckard: Blade Runner and protagonist of Philip K. Dick's "Do Androids Dream of Electric Sheep?".
* Rey: Force-sensitive scavenger and protagonist of the "Star Wars" sequel trilogy.
* R2-D2: Loyal astromech droid from the "Star Wars" franchise.
* RoboCop: Cyborg police officer in the "RoboCop" franchise.
* Ripley: Strong and resourceful protagonist of the "Alien" franchise.
Modern Fiction:
* Roald Dahl: Author of beloved children's books, such as "Charlie and the Chocolate Factory" and "Matilda".
* Rainsford: Hunter turned prey in Richard Connell's "The Most Dangerous Game".
* Rose DeWitt Bukater: Tragic heroine of James Cameron's "Titanic".
* Rosalind Lestrange: Dark witch and antagonist in the "Harry Potter" series.
* Remus Lupin: Werewolf and friend of Harry Potter in J.K. Rowling's "Harry Potter" series.
Comics:
* Red Hood: Anti-hero and former sidekick of Batman.
* Rocket Raccoon: Genetically engineered raccoon and member of the Guardians of the Galaxy.
* Rogue: Mutant with the ability to absorb powers from others in the Marvel Universe.
* Raven: Teen Titans member and daughter of the demon Trigon.
* Riddler: Batman villain with a penchant for riddles and puzzles.
This is just a small sample of the many fictional characters beginning with "R". There are countless more examples out there, from beloved classics to obscure indie creations!