Name: Ultra the Multi-Alien
Universe: Earth-1
Alter Ego: Ace Arn
Occupation: Space Pilot
Marital Status: Engaged
Group Affiliation: None
Base of Operations: Dalesville, USA
Known Relatives: Bonnie Denton Blake (fiancee)
Height: 6 ft.
Weight: Indeterminate
Hair Color: White
Eye Color: Black
First Appearance: Mystery in Space #103

History:
While piloting a tourist space cruise, pilot Ace Arn's ship was caught in the magnetic field of a comet. After evacuating the ship, Arn was himself unable to escape, slipping into suspended animation and being carried to another solar system by the comet's intergalactic orbit. Eventually, his ship crash-landed on an unnamed asteroid and Arn awoke in an underground cavern, the headquarters of a now-deceased alien named Zobra.

Zobra had invented a weapon which would transform whomever it was fired at into a duplicate of the being firing the weapon. Each of Zobra's four lieutenants, from four different alien worlds, was armed with one. At precisely the same moment, all four fired at Arn, with the result being Arn's transformation into a conglomeration of the four aliens. Using the powers he gained from this transformation, Arn defeated the four and, after repairing his spaceship, ventured to Earth.

Arn, now having taken the name Ultra, found that he could not transform back to his humanoid form and devoted much of his time to finding a cure for his transformation. During a battle with a criminal called Dr. Dynamo, Ultra discovered that the villain's DeMoleculizer could restore his true form.

However, when he had to regain his Ultra form to defeat Dynamo, the villain destroyed the DeMoleculizer, again trapping Arn in his alien form. Further attempts to effect the change eventually proved successful (though not without mishaps along the way), and Arn built a hyper-converter disc which enabled him to alter his form without any trouble.

Though his whereabouts are currently unknown, it is presumed that Arn married his fiancee, Bonnie Denton Blake, and is living happily ever after.

Powers:
From his four alien parts, Ultra has the powers of super-magnetism, super-strength and invulnerability, flight, and energy bolt generation. In addition, he had gained some knowledge from each of the aliens who went into making him what he is.

Ulra uses no weapons. His hyper-converter disc enables him to transform from Ace Arn to Ultra and back again.