FoolishPeople is a British theatre and production collective specialising in original site-specific and immersive theatre, as well as independent film and books. The collective was founded in 1989 by John Harrigan, who developed the theatre practice Theatre of Manifestation. Combining ritual, mythology, shamanism, drama therapy, strategic forecasting and open source collaboration in the creation of FoolishPeople's work. Each project takes form by merging text, performance, sound, art, light and the building itself to create dreamlike worlds that living characters inhabit. FoolishPeople were one of the early pioneers of immersive theatre in the UK and have utilised transmedia within their work since their inception in 1989.