William Stanley Zmitrowicz Jr. (born May 16, 1947 Bridgeport, Connecticut, USA), known professionally as Bill Smitrovich, is an American actor.
Smitrovich has starred in a number of television series. His first prominent TV series role was in the 1980s series Crime Story as Det. Sgt. Danny Krychek. He went on to star in the hit drama series Life Goes On (1989–93). Smitrovich was the lead guest star in the pilot film of the 1980s crime drama hit series Miami Vice. He also appeared in the final episode of NYPD Blue. He has also been seen in The Henry Lee Project with Danny Glover. In 1996, Smitrovich was cast as Seattle police lieutenant Bob Bletcher in Millennium, created and produced by Chris Carter, the creator of The X-Files. He is perhaps best known for his roles on the A&E series A Nero Wolfe Mystery (based on the Nero Wolfe detective stories by Rex Stout) as Inspector Cramer, and on the ABC hit series The Practice as Assistant District Attorney Kenneth Walsh and then went on to Without a Trace, where he played the recurring character of Chief Alex Olcyk. In 2010 he starred in the NBC series The Event as Vice President Raymond Jarvis.
He has made many guest appearances on various television shows. His best-known appearances include the two-part Star Trek: Deep Space Nine third-season episode "Past Tense," 24, Numb3rs, NYPD Blue, Touched by an Angel, Law & Order: Special Victims Unit, Criminal Minds, Castle, and the Dynasty reboot.