Michael Campbell (born in Anderson, Indiana) started his public career as a singer, songwriter and musician in Detroit. In 1967 with a short-lived band called 'The Abstract Reality', a 45 rpm single Love Burns Like A Fire Inside was released. With Bob 'Babbitt' Kreinar, Ray Monette and Andrew Smith he formed Scorpion. His name appears as Mike Campbell on the album Scorpion and Meat Loaf's debut album Stoney & Meatloaf (1971). For this recording, apart from having cowritten four songs, he played the harmonica on Lady Be Mine.
He became an actor by the name Michael Champion and since 1979 played in several TV series and films such as Diagnosis Murder (1993), Matlock (1989), and The Flash (1991), History of the World: Part I (1981), Beverly Hills Cop (1984), Total Recall (1990) and Toy Soldiers (1991), and video game characters like the terrorist in Flash Traffic: City of Angels (1994) and 'Wolf' in Maximum Surge (1996).
Musician and record coproducer Ralph Terrana has been quoted: "He [Campbell] was a very talented writer. He also could be a little unusual. We called him Crazy Mike."