Colton Lee Haynes (born July 13, 1988) is an American actor and model. He is known for his starring role as Jackson Whittemore in the MTV supernatural drama series Teen Wolf and as Roy Harper / Arsenal in the CW superhero television series Arrow.

Colton Lee Haynes was born either in Wichita, Kansas, or Andale, Kansas, a town of 900 people. He has described his parents as "free-spirited hippies". Haynes has five siblings. The children grew up on a farm in Andale and also lived in Arkansas, New Mexico, Texas and Florida. Haynes attended Navarre High School in Florida and Andale High School in Kansas, graduating from Samuel Clemens High School in Schertz, Texas. Haynes's parents were divorced; his father was married seven times.

Haynes came out as gay at the age of 14 and has said that he experienced bullying in school due to his sexuality. He has also stated that he ran away from home for a time due to his mother's negative reactions. Haynes's father ultimately died by suicide during his teen years; reportedly, Haynes was informed that his being gay is what drove his father to take his own life.

Haynes began his career as a model at the age of fifteen in New York City, New York. He subsequently appeared in a Bruce Weber photo shoot for Abercrombie & Fitch. Afterward, Haynes began modeling in campaigns for Kira Plastinina, J. C. Penney, and Ralph Lauren. In 2008, Haynes continued modeling in campaigns such as Verizon and also appeared in numerous magazine editorials such as Teen Vogue and Arena.

He made an uncredited appearance in the 2007 blockbuster Transformers. He also appeared on CSI: Miami and The Hills. In addition to guest roles, in April 2007, Haynes acted in My Chemical Romance's music video for their single "I Don't Love You", directed by Marc Webb. Later that year, Haynes auditioned for the role of Edward Cullen in the film version of Stephenie Meyer's young adult novel Twilight, but Robert Pattinson was cast instead.

In 2008, he appeared on the television series Privileged and Pushing Daisies. He played Scott Holland in the Hallmark Channel film Always and Forever. Filming began in December 2008, and the film was released to television on October 24, 2009. It was announced in 2009 that Haynes had won the role of Shane in the Showtime series Look, based on the 2007 film of the same name. "I play a 17-year-old asshole. The show is very racy with lots of nudity, sex, drugs and real-life experiences that will shock audiences," Haynes said in an interview. The show premiered in 2010 and was cancelled after its first season. In March 2010, filming began for the ABC television series The Gates, in which Haynes portrays Brett Crezski, a jock who begins to turn into a werewolf. The series premiered on June 20, 2010. The short-lived show was cancelled after its first season.

Haynes landed the role of Jackson Whittemore in the 2011 MTV series Teen Wolf, based on the 1985 film of the same name. In October 2012, Haynes revealed he was leaving the show after two seasons, stating "I'm sad that this chapter has ended, but excited for a new one to begin." Beginning in 2012, he was a recurring member on The CW's Arrow, playing Roy Harper, a street thug who idolizes the Arrow and later becomes his protégé, Arsenal. Haynes was upgraded to series regular status on Arrow for season two. Haynes left the series at the end of season three, but made a guest appearance in the season four episode "Unchained".

In September 2012, he appeared in Leona Lewis's music video "Trouble", playing the part of her boyfriend. In July 2013, he starred in Victoria Justice's music video "Gold". Haynes began foraying further into the music industry that same year by covering a song, "19 You+Me", with New Heights, before releasing a single with Travis-Atreo called "Baby It's Christmas". In December 2014, he also made a cameo appearance in Andy Grammer's music video "Honey, I'm Good".