This post has some spoilers (nothing important) but now you will know most of the characters in the show.
Gaara = guy with japanese love symbol on his forehead and has red hair.
Chouji = the really fat guy that always somehow has a bag of chips.
Tenten = The girl with a pink shirt on with brownish black hair and 2
huge meatball shaped pony tail things on her head.
Shikamaru = guy with a ponytail and a green shirt, has a lazy attitude
and can perform shadow bind *spoiler* *spoiler*
Naruto = well you're an idiot if you dont know him.
Sasuke = guy with the pokeball on the back of his blue shirt, from the
uchiha clan.
Kakashi = he's an easygoing guy with a part of his konoha headband
covering his left eye because its his sharingan eye.
(not spoiler everyone saw it in like the 14 episode)
Hinata = shy girl that always spys on naruto, she has purple hair and can
perform byakugan *spoiler* *spoiler*
Neji = hinata's cousin, he has a white coat with long brownish black
hair, and can also perform byakugan.
Kabuto = a genin that is as strong as kakashi and is very strong in the
catagorie of medical techniques. he has white hair with glasses.
Haku = he is a boy that protects zabuza, has long hair and wears a
mask, and has the passed down kekkai genkai of crystal Ice
mirrors.
Ino = she has blonde hair in a ponytail, and likes saskue and always fights over him with sakura. She can also perform the mind swapping
jutsu.
Sakura = she is a pink haired girl in a squad with naruto and saskue, she
also likes saskue and dosen't really have a lot of jutsu's.
Temari = gaara's sister with blonde spiky pony tails, and carry's around a
huge fan.
Kankurou = gaara's brother that has a specialty in controlling puppets
with his strings of chakra.
Rock Lee = a ninja that trys to be exactly like his sensai gai, and is
very good in taijutsu, but can not perform any ninjutsu
or genjutsu. you will recednise him by his shiny hair and his
big green suit.
Kiba = a guy with a coat thing on, he has 2 red stripes on his face,
carrys around a dog named akamaru.
Orochimaru = an evil former konoha ninja that wants saskue and will go
through a lot to get him, he has sharp teeth with a purple
thing around his waist. he is also one of the legendary
sanin. *spoiler* *spoiler*
Jiraiya = a man with spiky long white hair, and is also one of the
legendary sanin. He can summon the frog that helped
defeat the nine tailed fox demon.
Tsunade = a woman who is also one of the legendary sanin, and is a high
medical specialist.