10 DC Characters Weaker Than Superman Who Could (In Theory) Kill Him

7. Doctor Light

The Doctor Light pictured here is Arthur Light, but this entry could well apply to Kimiyo Hoshi as well. Doctor Light has the ability to control and manipulate all forms of light for a variety of purposes.

For example, he could bend the light around him to become invisible, generate blasts of energy, create force fields and even fly. By mentally repulsing photons, Light could create areas of complete darkness. Light could even "power up" by draining the ambient light in the area. As a result of his powers, Light could, for example, drain the ambient sunlight from Superman to drain him of his powers and, ultimately, his life force.

Or he could replace the yellow sunlight in Superman's body, which powers him, with red sunlight, which weakens him and would ultimately kill him. Light has also shown the ability to take control of a Kryptonian's heat vision, which he could potentially use against the man of steel. Essentially, Light has complete control over the very source of Superman's powers - and that could be used to cause fatal results - but he doesn't have the physical abilities to rival Superman in any way, shape or form.