Lucan was born on Viltrum and is thousands of years old. He was one of the Viltrumites that attacked Allen the alien and left him dead for space. He and his 2 Viltrumite allies would go to the planet where Nolan was and begin to wreak havoc across the skies and as Nolan was fighting his partners, Lucan finds mark in a cave and tries to kill Oliver Grayson. Eventually, Nolan fights Lucan and stops him from killing his family.
As a Viltrumite, Lucan possesses a myriad of abilities that are generally among those of his race. He possesses superhuman strength, speed, stamina, durability, flight, decelerated aging, the ability to survive in the vacuum of space, heal rapidly from any physical injury, has a tremendous lung capacity, has overriding genetic traits; expert hand-to-hand combatant; vulnerability to ear balancing, the scourge virus, and ragnars.