List of Superpowers Wiki

Todd Arliss (Tiger Shark) is a human mutate.


  • Diane Newell (sister)
  • Walter Newell (brother-in-law)
  • Mara Arliss (wife, deceased)

Powers and Abilities[]


Atlantean/human/tiger shark hybrid physiology: Doctor Dorcas' blending of Todd's DNA with that of a tiger shark and Namor McKenzie grants him a unique, amphibious physiology granting him a number of superhuman attributes.

  • Superhuman strength: Todd possesses great physical strength that varies greatly depending upon the amount of time he spends out of water. His strength is sufficient enough to engage Namor in direct physical combat. While wet, Todd possesses sufficient superhuman strength to lift up to seventy-five tons. When dry, however, his strength is significantly less and can lift about fifty tons. The least amount of weight Todd has been able to lift is about forty tons, but only after being dry for an extended period of time.
  • Superhuman speed: While on land and wet, Todd is capable of running and moving at speeds greater than even the finest human athlete.
    • Superhuman swimming speed: While in water, Todd is capable of swimming much faster than the finest Olympic swimmer. He can reach a top speed of sixty miles per hour.
  • Superhuman stamina: While wet, Todd's musculature produces considerably less fatigue toxins during physical activity. His musculature also generates far less fatigue toxins than the vast majority of Atlanteans, who all possess some level of superhuman stamina. He can exert himself at peak capacity for about twenty-four hours before fatigue begins to impair him.
  • Superhuman durability: While wet, Todd's body is considerably harder and more resistant than the body of an ordinary human or most Atlanteans. He is capable of withstanding the extreme temperatures and pressures of the ocean floor, powerful impact forces, high caliber bullets, and falls from great heights without sustaining injury.
  • Superhuman agility: While wet, Todd's agility, balance, and bodily coordination are enhanced to levels that are beyond the natural physical limits of the finest human athlete.
  • Superhuman reflexes: While wet, Todd's reaction time is enhanced to a level that is beyond the natural physical limits of even the finest human athlete.
  • Regenerative healing factor: Despite his superhuman durability, it is possible to injure him. However, like Atlanteans, he is capable of rapidly healing minor and moderate injuries faster than ordinary human beings, provided that he is wet.
  • Aquatic physiology: Todd's body is specially adapted for aquatic environments. His body is capable of withstanding cold temperatures and pressures that are found on the bottom of the ocean floor. He is also capable of breathing, speaking, seeing, and hearing underwater with perfect levels of clarity.


Olympic swimmer: Before gaining his superhuman powers, Todd was a record-breaking Olympic swimmer. His sheer strength and physical toughness makes him a formidable combatant.


Todd's vitality is dependent upon regular exposure to water. The longer he is out of water, his superhuman abilities rapidly dwindle. If he is removed from water long enough, it would prove fatal.