James B. Sikking (March 5, 1934 - July 13, 2024) was an American actor known for his role as Lt. Howard Hunter on the 1980s NBC TV series Hill Street Blues. He also starred on the ABC TV series Doogie Howser, M.D. as Dr. David Howser and on the short-lived 1997 CBS drama series Brooklyn South as Captain Stan Jonas. Sikking did the voice of General Gordon on the short-lived 1998 cartoon series Invasion America. His well-known films include The Competition, Outland, Up the Creek and Star Trek III: The Search for Spock, in which he played Captain Styles, the captain of the USS Excelsior. Sikking's film career started in 1955. Sikking starred in the critically acclaimed 1992 Fox Network TV movie Doing Time on Maple Drive. He has made guest appearances on many TV series including Perry Mason, Rawhide, Bonanza, The Outer Limits, General Hospit...