Trap Jaw; originally known as Kronis; is a blue-skinned humanoid cyborg criminal from another dimension and a member of Skeletor's Evil Warriors who attempt to conquer Eternia.
As Kronis, he raised an army to overthrow Skeletor, but was defeated by his master and severely wounded, leading Skeletor to order Tri-Klops to rebuild him as a cyborg. Humiliated, Trap Jaw remained mostly loyal to Skeletor after this point.
As a cyborg, Trap Jaw is most well-known for his mechanical mandible and ability to bite through and eat even the hardest substances, including solid rock and metal. His mechanical right arm allows him to attach a number of weapons and gadgets to adapt to different situations. He is not known for his intellect, however, and has been often outsmarted by He-Man and other members of the Heroic Warriors.
- Trap Jaw is sometimes presumed to be a member of the blue-skinned Gar species, although this isn't confirmed. Conversely, his biography in the Masters of the Universe Classics toy line claims him to be "an insane criminal from the dimension of Infinita".