"Appearances aside, I'm more of a sun shining life preferring creature."
— Swamp Thing in Zombie King

The Swamp Thing was a scientist who was mutated into a swamp-like creature. He is voiced by Mark Hamill.



While scientist Alec Holland was working on a formula to grow plant life where there is none, a rival organization vying for the formula, set off a bomb that covered Alec in his own bio-resortative serum. To escape the flames of the explosion, he stumbled into a nearby swamp where he mutated into the strange hero known as Swamp Thing!



Once a scientist living in a swamp Alec Holland was attacked by criminals who used explosives to kill him, instead his body fell into the swamp where he was reborn as a creature of living vines, grass and moss. A new champion for the Green Alec Holland became Swamp Thing, a protector of the natural world but and outcast to humanity due to his freakish form. He joined the Justice League during the crisis with the Brothers Djinn and became a member,fighting to protect the world. Swamp Thing had a run in with Solomon Grundy who sought to raise and army of the dead to rule the world, but with help from Batman and Zatanna he put an end to Grundy's plans and save the city of New Orleans.


Powers, Skills and Abilities

  • Swamp Thing has superhuman strength and the ability to regenerate any portion of his body. He can also command plants to do his bidding and change locations instantly by inhabiting vegetation anywhere in the world.
  • Superhuman Stamina
  • Self-Sustenance
  • Superhuman Strength
  • Superhuman Durability
  • Plant Manipulation
  • Plant Physiology
  • Elasticity








He's voiced by Mark Hamill, who also voices The Joker and Trickster.

In Other Media


Poison Ivy (Formerly unwillingly)


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