All in dark side
The story of Burtram is a common one in the beginning. Denied his rightful share of his father fortune Burtram went to his brother, Warren Jr. to borrow money which he used to buy a secret base under the Statue of Liberty that would be the headquarters of his illegal diamond smuggling operation.
Before we can move on we must stop to examine the brilliance of this plan. Because it is a common tourist location no one will notice a few extra people. As an island it is possible for ships to dock without going through typical channels so the chances of getting caught are far less and most importantly you can turn the statue of liberty into a giant remote control weapon of destruction. (So far as I know Dazzler did not do this but it can only be because of time management issues).
His ultimate plan was to create a giant laser using the diamonds. This laser called the Spatial Destructor(You have to give him style points for the name). Saddly before he could create this ultimate weapon his meddling brother(upon finding secret base under statue of liberty on the expense report) discovered what he was doing.
Dazzler, smart enough to stay out of these things himself, hired goons to kill his brother(Using the money he borrowed from his brother presumably).
Warren Worthington III, AKA. Angel learned of his fathers death and immediately assumed that it was Burtran Worthington and sought vengeance.
Using the teleporter he had in the base(No need to explain that every secret base has a teleporter) Dazzler imprisoned Angel in a room with his girlfriend Candy Southern. He then attempted to brainwash Angel to steal him a diamond big enough for his machine. This failed because Angel is a mutant and no mutant can ever be mentally controlled. (Never, none of them. It's a known fact all other examples are simply misunderstandings or possibly the placebo effect.)
With the help of several other X-men Angel was able to defeat a middle aged man with a half completed laser and Dazzler was put in prison. As this did not appear to be enough punishment for Angel he later suggested the name Dazzler be given to Alison Blaire as a constant reminder to his uncle of his disdain for the man. This is still Alison Blaire's primary reason for remaining with the X-men.
Burtram has not returned to crime mostly due to his inability to come up with a name cooler than Dazzler though he was recently overheard asking a friend what he thought of the name Lazeler so his criminal tenancies may be returning.
If you didn't know Dr. Manhattan from The Watchmen is based off of the character Captain Atom. A being able to manipulate a quantum field with a theoretically infinite amount of energy. He can fly, is nearly invulnerable, has super strength, he can live in the vacuum of space, and even create matter. So who would dare challenge this almost god like being. He would have to be someone with great courage, great intellect and great power. This is where one of his most important villains appears. Dr. Spectro. A member of the legion of Doom Dr. Spectro is able to use light to effect emotions as well as hallucinations. Not bad powers but they seem unlikely to have much effect on Captain Atom. His career as a villain, started out typically enough. His own technology was turned against him driving him into the life of crime, but from there it became less average, but later he was approached by the government. Wanting to create a superhero who was answerable directly to the government they paid Dr. Spectro and a few others to lose to Captain Atom so he could become a major hero. I am not certain what the long term game plan of Dr. Spectro was but eventually captain Atom turned against the government. The most important aspect of Dr. Spectro is of course his courage. From the courage to face the face of criminals who eventually turned his invention against him to the courage to fight captain Atom with no fighting ability and no plan. Even the costume he wears shows courage in abundance and though courage itself has not proven to be enough defeat Captain Atom it is worthy of our respect.