While growing up in Woodbridge, Virginia, Webb was captain of her school's dance team, and also earned her 1st Degree black belt in Tae Kwon Do. In 2001, she moved to San Diego, California and was active in her high school's theater department where she won various awards for her performances in productions of Rumors and Beauty and the Beast. In 2003, she competed in the Talent America Competition, winning the Western Region of the United States in dance and acting, and was discovered by longtime casting director/manager Gary Shaffer. Later that year she moved to Los Angeles, and began studying with acting instructors Howard Fine, Joanne Baron, and D.W. Brown. Webb made her directorial debut with the 2012 short film Patti, about the life and work of musician Patti Smith, in which she played the eponymous role. She also served as producer, film editor, set decorator, sound editor, and costumer. Webb has described herself as a "feminist".
- Haley's younger brother, Ian, is a founding member of the band, "Whippoorwill". He is also a current touring member of the metal-core band "All Shall Perish". Ian appears with Haley in Haley's short film, "Patti", where he plays Ivan Kral to Haley's Patti Smith.
- Haley performed all of her own stunts in The Final Destination.
|2009||The Final Destination||Janet Cunningham|
|2011||On the Inside||Allen's Girlfriend|
|2012||Patti||Patti Smith|| Short |
Also director, producer, film editor, set decorator, sound editor, and costumer
|A Conversation About Cheating with My Time Travelling Future Self||Jenny||Short|
|2014||Lost in Gray||Dana||Short|
|2015||Letter Never Sent||Claire Goodster||TV film|
|BYoutiful||Becca Ayres|| Short |
|Sugar Mountain||Lauren Huxley|
|Single in South Beach||Amy||Completed|
|2006||Close to Home||Kayla Philby||Season 1, Episode 22: "Hot Grrrl"|
|2008||Shark||Danielle||Season 1, Episode 20: "Fall from Grace"|
|2012||Sketchy||Actress||Season 1, Episode 11: "Chutes and Ladders"|
|Major Crimes||Dana Baker||Season 1, Episode 2: "Before and After"|
|2013||Teen Wolf||Jennifer Blake/Julia Baccari/Darach||Recurring role, 10 episodes|
|2014||Beauty and the Beast||Laura Scott||Season 2, Episode 9: "Don't Die on Me"|
|The Librarians||Mabel Collins||Season 1, Episode 9: "City of Light"|
|2015||Backstrom||Virginia Anderson||Season 1, Episode 11: "I Like to Watch"|
- "Motel California"
- "The Girl Who Knew Too Much"
- "The Overlooked"
- "Alpha Pact"
- "Lunar Ellipse"