James B. Sikking, known for his roles as Lt. Howard Hunter on “Hill Street Blues” and the titular character’s father on “Doogie Howser, M.D.,” has died. He was 90.

James Sikking, 'Hill Street Blues' and 'Doogie Howser' actor, dies at 90 On the acclaimed NBC police drama, Sikking played Lt. Howard Hunter, uptight head of the Emergency Action Team. By AP ...

(Photo by Tommaso Boddi/WireImage) Tommaso Boddi Sikking earned an Emmy nomination for outstanding supporting actor in a drama in 1984 for his role as Lt. Howard Hunter on "Hill Street Blues." ...

Sikking as Lt. Howard Hunter on “Hill Street Blues.” NBCU Photo Bank/NBCUniversal via When it debuted on the heels of a Hollywood dual strike, the NBC show was met with low ratings and little ...

Sikking would land his most memorable part in the 1980s when he joined Hill Street Blues as Lt. Howard Hunter. He starred in the entire run of the NBC police procedural from 1981 to 1987.

Before that, he starred as Lt. Howard Hunter in "Hill Street Blues," a clean-cut Vietnam War veteran who headed the Emergency Action Team of the Metropolitan Police Department.

Sikking earned an Emmy nomination for outstanding supporting actor in a drama in 1984 for his role as Lt. Howard Hunter on “Hill Street Blues.” ...

Sikking earned an Emmy nom in 1984 for playing the gung-ho S.W.A.T. leader Lt. Howard Hunter on Hill Street Blues during the show’s full 1981-87 run and co-starred as the title character’s ...

He was best recognized for playing Lt. Howard Hunter, the leader of the precinct’s Emergency Action Team, on Hill Street Blues from 1981 to 1987.

After the end of “Hill Street Blues,” Sikking was cast as the father of “Dougie Howser, M.D.,” David Howser, appearing on all four seasons of the show, according to The Hollywood Reporter.

The actor famously played Sgt. (later promoted to Lt.) Howard Hunter in the Steven Bochco-created NBC police procedural series Hill Street Blues, which aired from 1981 to 1987.