Dungeon Siege breaks the mold from other RPG games in this, one of the most important aspects of any game, the definition of who you are in the game world. When you first start up the game your choices are simple, either choose to be a farm boy or a farm girl, your name, and select basic cosmetic appearances such as color of hair, skin color, facial hair, shirt and pants. After that what becomes of your character is entirely up to you. And don't worry about any gender bias in DS, there are no differences between playing through the game as a male or female character as far as your skills or development are concerned.
Your character will be imbued with the following statistics:
Strength - Hand-to-hand combat
Dexterity - Ranged weapons
Intelligence - Magic
Health - Hit points
Mana - Magic points
The real beauty of this system lies in the complete freedom the character has to develop dynamically as the game progresses. The class of your character is determined by your actions, if you use a sword a great deal and only magic sometimes then you will become a character that acts as a Blademaster - Sorcerer. If you later on decide that you'd like to gain proficiency as an archer, you simply pick up a bow and begin focusing on that, and you'll see a fanciful glowing icon appear above your character as you gain proficiency.
You're free to create any character you like and you grow with your character, further keeping you personally involved in the game as the story progresses.