Der Polizeichef
After starting his career as a television screenwriter, Cannell created or co-created several dozen successful TV series from the 1970s to the 1990s, often with his creative partner Frank Lupo. Cannell's creations included "The Rockford Files", "The A-Team", "Renegade", "The Greatest American Hero", "21 Jump Street", and "The Commish". He also wrote novels, notably the Shane Scully mystery series.