Chaotic good

Chaotic good combines a good heart with a free spirit. In 4th edition mechanics for Dungeons & Dragons chaotic good is found under the umbrella of the good alignment.

A chaotic good character acts as his conscience directs him with little regard for what others expect of him. He is kind and benevolent, a strong individualist hostile to the claims of rules, regulations, and social order. He hates it when people try to intimidate others and tell them what to do. He will actively work to bring down unjust rulers and organizations and to liberate the oppressed. He finds lawful societies distasteful and will avoid them, often living as a nomad or hermit.

Noble rebel leaders fighting corrupt or venal regimes, vigilantes acting for what they see as the greater good, mercenaries who only work for the "good guys" and anyone who "robs from the rich to give to the poor" are all examples of chaotic good characters.

Characters
Some of the characters identified as Chaotic Good in the Forgotten Realms setting include:

Alustriel Silverhand Catti-brie Danilo Thann Dove Falconhand Drizzt Do'Urden Elminster Aumar Laeral Silverhand Mirt Nalia Qilué Veladorn Shandril Shessair Storm Silverhand Volothamp Geddarm