User blog comment:Bobdave/Epic Rap Battles - Modern vs Classic Announcement/@comment-4490782-20160605103250

Aight, I knew I was missing something

Yeah, fictional characters very much count as long as they fit the guidelines. The character's creation should be looked at rather than their personal timeline in their fictional universe. So if a character was born in 200 BC in some comic but was created in 2007, then they're modern.