Triton

Triton is a member of the Inhumans, people  who were mutated by the Kraang and his powers are: able to breathe water, to swim at great speeds, and to withstand the pressures of the deep sea. His resistance to deep sea pressure also gives him superhuman physicals abilities, with his mobility being highest underwater. He has the ability to survive underwater indefinitely, and the ability to withstand the temperature and pressure of ocean depths. His vision is more sensitive to the green portion of the visible spectrum, enabling him to see in relatively dark ocean depths.