They appear in the season 8 episode "State of Shock". Alex Winter was one of their former members, described by Colonel Wesley Knight as the greatest agent Dark Water ever had, and a hero who was believed to have made the ultimate sacrifice for his country. He was used as a test subject for "Operation Ultima," Dark Water's plan to create the ultimate warrior. This operation was believed to be a failure and Winter was presumed dead.
However, Alex Winter survived and the test gave him the power to create charged matter from his fingertips. Alex Winter then decided to become the villain Megavolt and began to seek revenge against his ex-comrades who abandoned him. It is also revealed that, at one point, April dated a man who worked for Dark Water.