Planet Master

Planet Master I
Professor Iriving Norbert is a scientist who was exposed to the gases of a meteor. The result caused him to develop a Jekyll and Hyde-type personality with the bad one turning to a life of crime. Using his knowledge of astronomy, Norbert became a costumed villain named Planet Master and used weapons based on the nine planets. He managed to outwit Batman and Robin in the first battle. Norbert's unscrupulous assistant Edward Burke discovered the double identity of his boss, and decided to either join forces with Planet Master or to use his equipment on his own. Ultimately, though, the effects of the gas wore off. Norbert's criminal self was erased and Batman brought Burke to justice.

Planet Master II
When Kobra was creating a strike-force called Strikeforce Kobra to usurp Stagg Enterprises in his goal of world domination, one of the villains he created was patterned after the original Planet Master. What makes this version different form the original is that he can simulate the abilities of the other planets. He alongside the other members of Strikeforce Kobra fought the Outsiders and was defeated.

Although never sated, it is possible that this Planet Master is Edward Burke (who was the former assistant of the first Planet Master). Even years ago, Burke planned to use the original Planet Master's equipment in Crime.

Either way, this Planet Master popped up as a member of Alexander Luthor, Jr.'s Secret Society of Super Villains.

Planet Master I:
The first Planet Master uses weapons based on the planets.

Planet Master II:

The second Planet Master could simulate the conditions typical to any of the nine planets in our solar system. For example, he can use the speed of Mercury, the heat of Mars, the strength of Jupiter, the spinning of Saturn, and the cold of Pluto.

In other media
Television:

The second Planet Master appears in the Batman: The Brave and the Bold episode "Aquaman's Outrageous Adventure" voice by Stephen Root. While stopping in a western town with his family, with his family, Aquaman sees on a TV in the saloon, the Planet Master is attacking the abandoned Yarmouth Gold Mine and fighting Blue Beetle. While his family is on a stagecoach, Aquaman takes the opportunity to help Blue Beetle fight Planet Master in order to keep him from stealing the gold. Aquaman managed to divert the Planet Master's artificial meteor back at him.