Billy Pilgrim, main character in Kurt Vonnegut's "Slaughterhouse-Five"
"Billy Elliot," musical, film and main character
Billy Nutter, character on TV's "Jane by Design"
Billy, main character on animated series "Grim Adventures of Billy & Mandy"
Billy Cranston, BlueRanger from the Power Rangers series
"Billy Madison," movie and main character
Billy Bickle, character in movie "Seven Psychopaths"
Dr Billy Peale, character on TV's "American Gothic"
Billy Bannister, main character of the Dragons in Our Midst series by BryanDavis
Billy Thunderman, character in Nickelodian's "The Thundermans"