In 1958, Wingreen had the role of Nichols in the 20th Century Fox production The Bravados. Wingreen lent his voice to the bounty hunter Boba Fett in the 1980 sequel to Star Wars, The Empire Strikes Back. For the DVD release of the film in 2004, Wingreen's voice was replaced by New Zealand actor Temuera Morrison in continuity with the 2002 prequel in which the character is revealed to be a clone of Morrison's Jango Fett who acts as Boba's father.
Stage
Wingreen helped to found the Circle in the Square Theatre in Greenwich Village. On Broadway, he played in The Girl on the Via Flaminia and Fragile Fox, both in 1954.
Television
Wingreen was known for his role as Harry Snowden on the television sitcom All in the Family and its continuation series, Archie Bunker's Place. Prior to this, Wingreen was a regular during the 1960-61 season of The Untouchables, playing Police Captain Dorsett. He performed in "A Stop at Willoughby," "The Midnight Sun," and "The Bard," three episodes of the original Twilight Zone series. He also appeared on the original ' series, making him one of the few people involved with both Star Wars and Star Trek. Wingreen also had a recurring role as Judge Arthur Beaumont in the series Matlock, and has guest-starred in numerous other series, including ', Outer Limits, Bonanza, The Rockford Files, The Armstrong Circle Theatre, Alcoa Theatre, The Man From U.N.C.L.E., The Many Loves of Dobie Gillis, Dr. Kildare, and The Fugitive. In 1965, Wingreen would portray Adolf Hitler on Blue Light. In 1979, Wingreen was a part of the ensemble cast of the TV mini-series . In 1991, he guest starred on General Hospital as Judge Mattson. After an appearance on TV's Seinfeld in the 1990s, Wingreen retired. His last credited TV work was on In The Heat Of The Night in 1994.
Personal life
Wingreen married Gloria Scott Backe. Backe, known as "Scotty" died in 1996. They had one son together.
Death
Wingreen died at the age of 95 at his home in Los Angeles, California, on December 25, 2015. Jeremy Bulloch, who physically portrayed Boba Fett, paid tribute saying that "he will be sadly missed by his family, friends and all the Star Wars fans." He is survived by his son theoretical physicist Ned Wingreen, two grandchildren, and his sister, Harriet, a former pianist for the New York Philharmonic.