A Guy Called Gerald
 Gerald Rydel Simpson (born 16 February 1967 Moss Side Manchester England) better known as A Guy Called Gerald is a British musician record producer and DJ.He is best known for his early work in the Manchester acid house scene in the late 1980s and the track Voodoo Ray. At that time he specialised in techno music produced using equipment such as the Roland TB-303 bass synthesiser and the TR-808 drum machine.