text: Jay Bilas as Azeck, an extraterrestrial police officer. Unlike Talec, he is fluent in English.
  Jim Haynie as Captain Malone, Caine's boss.
  David Ackroyd as Inspector Switzer, Smith's boss.
  Sherman Howard as Victor Manning, a white collar drug dealer and boss of the White Boys.
  Sam Anderson as Warren, underboss of the White Boys.
  Alex Morris as Detective Ray Turner, Caine's original partner. He is killed by the White Boys during a sting operation.¡
  The film also stars Mark Lowenthal as Bruce, an eccentric and paranoid scientist; Michael J. Pollard as Boner, a petty criminal; Jesse Vint as McMurphy, Talec's first victim; Mimi Cochran as a car mechanic; Jack Willis as a liquor store owner; Tony Brubaker as a garage sweeper; Brandon Smith as a market clerk; Wayne Dehart as a market customer; and Al Leong (credited as Albert Leong) as a luggage salesman who tries to rip off the White Boys.
  Production
  Development and writing
  Screenwriter David Koepp was credited as Leonard Maas Jr. Vision PDG was the only credited production company. In April 1989, after filming went two weeks over its deadline, the film's principal photography wrapped in Houston, Texas. Although the film was planned for release for August 3, 1990, it was eventually pushed back to September 28, 1990.