DJs stay in the station, fires his management staff responsible for the advertising conflict, and then joins the DJs inside the station. Cast Michael Brandon as Jeff Dugan Eileen Brennan as Mother Alex Karras as Doc (Holiday) Cleavon Little as Prince of Darkness Martin Mull as Eric Swan Cassie Yates as Laura Coe Norman Lloyd as Carl Billings Jay Fenichel as Bobby Douglas James Keach as Lt. Reach Joe Smith as Albert Driscoll Tom Tarpey as Regis Lamar Robert Patten as Jack Rapp Linda Ronstadt as Herself Jimmy Buffett as Himself Tom Petty as Himself REO Speedwagon as Themselves Production The story unfolds across a background of concerts, broadcast music, appearances by various rock stars, and public appearances by the station's DJs. A minor sub-theme to the film is the competition between QSKY and another area radio station, KLAX. The major event of that sub-theme occurs when Jeff arranges to broadcast a live concert by Linda Ronstadt that is being sponsored by a competing radio station. Another minor sub-theme is the ongoing task of massaging egos of the various DJs to keep them happy and on the air. Martin Mull appears in his feature film debut as a egotistical DJ Eric Swan. Rounding out the cast are Cleavon Little, who plays the Prince of Darkness, QSKY's overnight host (Little had previously played a disc jockey in the film Vanishing Point (1971)); Eileen Brennan as "Mother", the 40-something nighttime DJ; Alex Karras as "Doc Holiday", the midday DJ with the lowest ratings on the station who is eventually dismissed from the station; Cassie Yates as Laura Coe, who takes over Doc's midday slot; and Tom Tarpey as new sales manager Regis Lamar, the bane of the disc jockeys' existence. In addition, the film includes live appearances by Tom Petty and REO Speedwagon along with live performances by Linda Ronstadt and Jimmy Buffett. Steely Dan performed the title theme, which became a sizable hit. The Eagles, James Taylor, Bob Seger, Dan Fogelberg, Billy Joel, and Queen were featured on the Platinum-plus soundtrack album. Record company executive Irving Azoff participated in the making of the film as executive producer, but he disowned it before release and asked that his name be removed from the credits, a request which Universal granted. Azoff said the film was "not an authentic representation of the music business" and that the studio reneged on its promise to allow