Blackcoil

Travis Nelson is a student at the ZPA and one of the co-creators/artist of the comic series 7734.

Story
Travis has a lesser role in the story, being a friend to Hayden and co-creating the comic book series 7734 with his girlfriend, Carly.

After Season 1, Travis decided at the last moment to join the PIU instead of The Wards. He was assigned to Los Angelas, alongside Darcy. He was happy enough to see somebody he vaguely knew so he didn't have to make any new friends. They became fairly good friends, close enough that Travis wasn't sure if he really wanted to leave when his time was up. Though, of course, e-mails exist so it's not like he'd never hear from Darcy again. Or at least that's the way he rationalised it.

He moved to San Diego with Carly when her military service was up and they both formed a comic publishing company with their savings called Brickhouse. They are doing well for themselves with the business venture.

Power
Travis' power is called "Obfuscating Tendrils", which allow him to put people in a state of sensory deprivation. It's interesting in the fact that they can also do direct damage and be damaged.

The more tendrils that Blackcoil creates, the more damage it does to his body over time. The first three leave him weak but still functional, while every multiple of three past that cause him increasingly more severe bodily harm to the point that 12+ would probably kill him.