Caspa, born Gary McCann in London, United Kingdom, is a pioneering figure in the dubstep genre known for his influential productions, energetic DJ sets, and role in shaping the sound of UK bass music. Emerging in the early 2000s, Caspa quickly became a key player in the nascent dubstep scene, helping to define its subterranean sound with deep basslines, syncopated rhythms, and an unmistakable sense of atmosphere. He is the founder of the influential Dub Police label, which has been instrumental in launching and nurturing the careers of numerous major artists in the genre.

Caspa’s collaborations with fellow producers like Rusko and remixes for artists such as Deadmau5, Depeche Mode, and Miike Snow have expanded his reach beyond the underground, bringing his gritty yet dancefloor-friendly aesthetic to global audiences. His iconic releases, including "Cockney Thug," "Rubber Chicken," and the landmark "FabricLive.37" mix (with Rusko), solidified his reputation as a trailblazer in electronic music.

Throughout his career, Caspa has remained true to the roots of dubstep while continuously evolving his sound, maintaining his status as one of the genre’s most respected and enduring figures.