Classic Characters:
* Niles Crane (Frasier)
* Nigel Thornberry (The Wild Thornberrys)
* Ned Flanders (The Simpsons)
* Norman (The Norman Show)
* Napoleon Dynamite (Napoleon Dynamite)
Modern Characters:
* Nick Wilde (Zootopia)
* Nomi (She-Ra and the Princesses of Power)
* Noah (The Amazing World of Gumball)
* Nightman (The Venture Bros.)
Other Possibilities:
* Nancy Drew (Nancy Drew Mysteries)
* Ninja Turtles (Teenage Mutant Ninja Turtles)
* Nutella (A mascot for the chocolate hazelnut spread)
Let me know if you'd like more ideas!