William Holland is a musician, DJ and record producer from Bewdley, Worcestershire. He is based in Colombia.

He records under various guises, notably, Quantic, The Quantic Soul Orchestra, and The Limp Twins. His music draws upon elements of cumbia, salsa, bossa nova, soul, funk and jazz. Holland plays guitars, bass, double bass, piano, organ, saxophone, accordion and percussion. Much of his sound is original composition with little in the way of sampling of other artists' material.