Characters in universe Hey Arnold!

Image	Character	Original name	Universe	Apperances
	Arnold	Arnold	Hey Arnold!	Hey Arnold!
	Arnolds Bestemor	Arnolds Bestemor	Hey Arnold!	Hey Arnold!
	Ernie Potts	Ernie Potts	Hey Arnold!	Hey Arnold!
	Eugene Horowitz	Eugene Horowitz	Hey Arnold!	Hey Arnold!
	Gerald Johanssen	Gerald Johanssen	Hey Arnold!	Hey Arnold!
	Grandpa Phil	Grandpa Phil	Hey Arnold!	Hey Arnold!
	Harold Berman	Harold Berman	Hey Arnold!	Hey Arnold!
	Helga	Helga	Hey Arnold!	Hey Arnold!
	Line Heyerdahl	Line Heyerdahl	Hey Arnold!	Hey Arnold!
	Marty Green	Marty Green	Hey Arnold!	Hey Arnold!
	Miriam Pataki	Miriam Pataki	Hey Arnold!	Hey Arnold!
	Mr. Hyunh	Mr. Hyunh	Hey Arnold!	Hey Arnold!
	Olga Pataki	Olga Pataki	Hey Arnold!	Hey Arnold!
	Oskar Kokoshka	Oskar Kokoshka	Hey Arnold!	Hey Arnold!
	Rob Pataki	Rob Pataki	Hey Arnold!	Hey Arnold!
	Sheena	Sheena	Hey Arnold!	Hey Arnold!
	Sid	Sid	Hey Arnold!	Hey Arnold!
	Stinky Peterson	Stinky Peterson	Hey Arnold!	Hey Arnold!