I've created a charecter to use as an NPC, but the sprite is the same one as my Player charecter and I don't know how to change it without changing my player charecter
BFAQ: Creating your own Characters (http://americangirlscouts.org/agswiki/index.php/Graphics%2C_Characters%2C_Text_%26_Rooms#Creating_your_own_characters).
Just follow those instructions: Import your sprites, assign them to a new View, and then set that View for your NPC's Normal View.