Obi-Wan Kenobi, Yoda and by extension most of the Jedi Order are Lawful Good. They always act with compassion, honor and a sense of duty, but are sometimes tied up by choosing to follow the rules and their moral compass.
Qui-Gon Jinn, Anakin Skywalker, Luke Skywalker and Chewbacca are Neutral Good. They are guided by their conscience and will always do the right thing, even if it means disregarding pre-established rules or tradition.
It can be argued that Count Dooku (before becoming Darth Tyranus) was Chaotic Good. He grew disillusioned with the Republic and the Jedi Order and sought meaningful change in the galaxy before becoming associated with Darth Sidious.
The clone troopers and stormtroopers are Lawful Neutral. They may have their own moral compass, but they do not let it get in the way of their duties, and always follow orders.
When we meet him in The Empire Strikes Back, Lando Calrissian is True Neutral. He does not want to get involved with either the rebellion or the Empire, and betrays Han not out of any ill will towards him, but instead to guarantee the safety of his people.
The Hutt Clans are Chaotic Neutral, as they don't give a damn about any form of law and order and are instead wholly focused on fulfilling their own desires and seeing their own plans come to fruition. A less dramatic example of this would be the Confederacy of Independent Systems.
Darth Vader, Boba Fett and General Grievous are all Lawful Evil. While they will casually disregard the lives of those who get in their way, they will nonetheless follow the word of their superiors, even if they disagree with the orders being given.
Asajj Ventress and Emperor Palpatine are both Neutral Evil. While they will often kill indiscriminately to further their own means, they will not cause carnage and destruction just for the sake of it. As her character develops, Ventress starts to venture further into Chaotic Neutral territory.
I can't think of anyone who is Chaotic Evil. The closest I could think of are Darth Maul and Savage Opress, but in The Phantom Menace Maul is definitely Lawful Evil (as is Savage in TCW), and in The Clone Wars Maul ventures more towards Neutral Evil territory, although he is definitely borderline Chaotic Evil.