Rintaro; Okabe from Steins; Gate ~ Brown hair, check and a simple look, just need to similair clothing and a lab coat.
Also there's Itaru "Daru" Hashida also from Steins; Gate. Brown hair, check. Glasses, check. Simple costume, check. Also doesn't hurt if your a 'big' guy.
Nobuchika Ginoza from Psycho-Pass has dark hair and glasses and a simple look though getting that gun could be problematic.
Gendo Ikari from Evangalion has dark brown hair and glasses and a fairly simple look if my memory serves... might want to grow a short beard though as fake ones always look odd.
Negi Springfield from Negima! has brown hair and glasses and a fairly simple look.
Takumu Mayuzumi from Accel World has brown hair and occasionally wears glasses and a simple look... though his alter ego Cyan Pile does not!
Sousuke Sagara from Full Metal Panic! has brown hair and a simple look. I went as him once years ago because I already had fatigues in my Army days just had to do a little simple scar make up.
Pace from La storia della Arcana Famiglia has brown hair, glasses and a simple look.
Takashi Komuro from Highschool of the Dead has brown hair and a simple look as does Kohta Hirano. Kohta wears glasses and is a little husky but is a @$$ kicker when he gets serious!
Ryota Sakamoto from Btooom! has brown hair and a simple look as well.
Misato Suguru from Mahoromatic has brown hair and glasses.
Both Kyon and Itsuki Koizumi from the Haruhi Suzumiya series have brown hair.
I'm sure there are many more but those are just the ones I can think of off the top of my head. Good luck and have fun! XD
Edited by Wolfson (06/24/14 04:11 PM)