Occupation: Spy

Affiliation: Works for the Murran government, which is bent on planetary conquest.

Home Planet: Murra

Super-Powers: All Murrans had access to a mighty computer that made super-pills that gave the inhabitants virtually any super-power they wanted - super-strength, thought-casting, invisibility, shape-changing, flying, invulnerability, electricity, x-ray vision, etc.

As Size Lad, Aarl took a pill to give himself the power to make any object bigger or smaller.

Limitations and Weaknesses: The effects of the super-pills were only temporary.

Personality: Aarl is the commanding and confident leader of the interplanetary secrets agents whose mission was to steal the fictitious "Plan-R" from the Legionnaires as a prelude to invasion.

Relationships: Aarl commanded two other Murrans during their infiltration of the Legion - Blackout Boy and Magnetic Kid (Xaxan) - whom he got along well with on a professional basis, though he shows little patience for any incompetance.

Criminal Record: The Legionnaires defeated the 2965 Murran plan for invasion by using "Plan-R" to trick the spies into joining the Legion then leading them to their native world where they destroyed their computer and all the super-pills on the planet.

Appeared In: Adventure Comics No. 337

Super-Power: None

Weapon: Al uses a senili-ray, which he stole from the Metro Science Center. The ray can age its target 10,000 years in 30 seconds, making witnesses and evidence crumble to dust.

Transportation: Al drives his air-truck, which advertises his business on the side.

Personality: While good at pretending to be a friendly and hard-working handyman, Al is actually a ruthless killer.

Criminal Record: Al worked for the Warren estate in order to steal Janice Warren's light-jewel from Karmath, a valuable gemstone her wealthy father bought for her, in 2968. He tried to kill Janice in order to cover his tracks. He was captured by Chameleon Boy.

Appeared In: Action Comics No. 383/2

Super-Power: None

Equipment: Alaktor invented a "marvel belt" with gadgets to mimic the powers of super-radiance, super-loud sound, mechanical hypnotizing, and others.

His greatest invention, however, is the Psycho-Changer, a portable headset that can transfer the personality of the person wearing it into the brain of another person. This places the user into a coma-like trance, while their personality dominates the target body. This device can even work on invulnerable beings like Superboy and Mon-El.

Personality: Alaktor is a man of great ambition, and while he plans his crimes with great detail (he even learned Latin in order to converse with Nero), he one major flaw is that he is too trusting of the criminals with which which he associates.

Criminal Record: While pretending to be a Legion applicant in 2963, Alaktor used special cameras hidden in his "marvel belt" to take x-ray photographs of the Legion Clubhouse so he could later slip past its security devices and steal a Legion time-bubble. After recruiting Emperor Nero from A.D. 64, John Dillinger from 1934 and Adolf Hitler from 1945, Alaktor used his psycho-changer device to impress the trio's evil personalities into the brains of Mon-El, Ultra Boy and Superboy, respectively. Alaktor's ultimate goal was to get them to help gather mighty scientific machines on Lost World, but his plans backfired when Saturn Girl played villain upon villain by telepathically revealing to them the others' secret weakness.

Appeared In: Adventure Comics No. 314/1

Super-Power: None

Weapon: Rakurga, the deadliest poison in the universe and one with no antidote.

Personality: His obsession for murderous revenge over being arrested for penny-ante theft inditcates Korlo has an unstable mind (as does his insane laugh). Unlike most criminals who feel the need to gloat and gain recognition for their crimes, Korlo relished the idea that the Legionnaires would never know who killed them and why.

Criminal Record: Previously arrested by the Legion for penny-ante theft. To avenge himself, in 2968 he used rakurga laced with green kryptonite to poison Brainiac 5, Duo Damsel, Karate Kid, Princess Projectra, and Superboy. The Legionnaires were saved by the Seerons from another dimension, who had also kept Korlo in a timeless state until the other members of the team arrived to arrest him.

Appeared In: Adventure Comics No. 378-379

Affiliation: Was part of a loose alliance of criminals operating out of the planet Modo.

Super-Power: None

Weapons: He is not averse to sacrificing part of his haul to incapacitate his victims.

Limitations and Weaknesses: Without adequate protection, there is always the danger of inhaling any gases used against opponents.

Personality: Ranff is not very bright, as evidenced by using mind-expanding gas as a weapon but not wearing a gas mask. As a result, he succumbed to his own "Preparation L".

Criminal Record: Knowing that he had a refuge in the living planet Modo, Ranff led a gang of four other thieves to steal experimental and forbidden mind drugs from the United Planets mind-drug research center in Metropolis in 2968. Due to his ineptitude, he succumbed to the mind-expanding gas he used against the Legionnaires and so was captured and taken to Science Police Headquarters for questioning by the Interrogator. The information he provided about Modulus's control over the planet Modo enabled the Legionnaires to come up with a plan to eventually make the biggest catch of crooks in history.

Appeared In: Adventure Comics No. 377

Affiliation: Partnered with an old man named Skyzznx.

Super-Power: None

Weapons: A long-range death ray, powered by solar wind.

Transportation: A large sailboat made of inertron that skims the surface of the sun, driven by the solar winds upon its thermoplastic sail.

Personality: Overconfident to the point where she will celebrate her victories ahead of time. Likes to drink alcholic beverages.

Relationships: It is not clear what her relationship with the old man, Skyzznx, was. It may have been simply professional but they may also have been either lovers or had family ties.

Criminal Record: In 2968, the two would-be invaders hid on their sailboat on the sun and tried to destroy the Legion with a death ray. Superboy saved his teammates and, upon their failure, Skyzznx chose to turn a gun on both he and Alrrk. While it appeared as though the two were incinerated, the device may have had another, unknown function, one that enabled the duo to escape their punishment.

Appeared In: Adventure Comics No. 380

Affiliation: The gang is made up of three members.

Home Planet: 281-Y

Super-Powers: None

Weapons: Bolt-cannons

Transportation: They did have a few one-man space-ships, which Colossal Boy stomped on during his capture of the gang.

Criminal Record: These small-time crooks wanted to pull one last job in 2965 that would enable them to get rich without having to pull any future robberies. So, from a secret government lab on Earth, they stole the duplazor, a handheld machine that can make exact duplicates of anything. They were trailed back to their headquarters by Colossal Boy, who arrested them.

Appeared In: Adventure Comics No. 330

Occupation: Space hi-jacker

Affiliation: The Devil's Dozen

Home Planet: Not named

Base of Operations: Tartarus

Super-Power: Like all men on his world, Apollo possesses a golden aura that makes females captivated by his irresistable charms. They will do anything for him, even steal, without knowing they are doing anything wrong. Even Saturn Girl's super-mentality couldn't hold up against the full strength of his charm.

Limitations and Weaknesses: His power to charm has no effect on males.

Equipment: Apollo uses a harp to lull both people and beasts into docile submission. On his planet, instruments like this are used to cool fiery tempers (probably between jealous males). When another tune is played, it can also cause tempers to flare up.

Personality: Apollo is vain, smug, and boastful. He instinctively reacts to seeing physical imperfection in others by being insulting.

Criminal Record: In 2966, Apollo robbed the Interplanetary Bank as part of a plot to kidnap the Legionnaire Lightning Lad for Evillo to make him join the Devil's Dozen. He was later punched out by Invisible Kid.

Appeared In: Adventure Comics No. 350-351

Affiliation: The Brain-Lords

Home Planet: Khann (in the Palace of Villainy), which is inhabited only by the criminal outcasts of hundreds of worlds.

Super-Power: None

Personality: An eternally-living brain removed from the dying body of one of the cosmos' mightiest evildoers, Atro was more cunning and evil than all the other globe-brains combined, of which there are several.

Criminal Record: Too numerous and heinous to mention, he has destroyed entire worlds and killed billions of people. Matter-Eater Lad and Triplicate Girl went on a covert mission to Khann to bring Atro to justice in 2964.

Appeared In: Adventure Comics No. 325