William Schallert, American actor; president (1979–81) of the Screen Actors Guild (died 2016)

William Joseph Schallert was an American character actor who appeared in dozens of television shows and films over a career spanning more than 60 years. He is known for his roles on Richard Diamond, Private Detective (1957–1959), Death Valley Days (1955–1962), and The Patty Duke Show (1963–1966).

The Screen Actors Guild (SAG) was an American labor union which represented over 100,000 film and television principal and background performers worldwide. On March 30, 2012, the union leadership announced that the SAG membership voted to merge with the American Federation of Television and Radio Artists (AFTRA) to create SAG-AFTRA.