Wingreen voiced the villainous bounty hunter in "Star Wars Episode V: The Empire Strikes Back," recording only four lines of dialogue for the film, for which he was not credited until around 2000. He also appeared in "Matlock," "Star Trek," "Airplane" and several episodes of "The Twilight Zone," as well as his recurring role as Harry the bartender on "All In The Family" and "Archie Bunker’s Place."
Wingreen received no residuals from his role in "The Empire Strikes Back," but Boba Fett has become iconic in the "Star Wars" fan-verse. Some of the early Boba Fett action figures featured Wingreen's voice as well.
When "Star Wars" creator George Lucas re-released altered versions of the original movie trilogy, he replaced Wingreen's brief dialogue with newly recorded lines by Temuera Morrison, who played Boba's "father," Jango Fett, in the prequels.