After first appearing as Roy Harper on the CW superhero drama Arrow late in the first season, Colton became a series regular for season two and three and returned for a season-four episode.  This year, he also dropped in for two episodes of Fox's The Grinder, playing the son of Rob Lowe's character in the earnest lawyer procedural-within-the-show.  
Haynes previously played supernatural characters as series regulars on MTV's Teen Wolf and ABC's The Gates.  He made his movie debut last year in Warner Bros' earthquake disaster pic San Andreas, playing an LAFD helicopter rescue pilot alongside Dwayne Johnson.