Oz is also known as the performer of Jedi Master Yoda from George Lucas' "Star Wars" series. Jim Henson had originally been contacted by Lucas about possibly performing Yoda. Henson was preoccupied and instead suggested Oz be assigned as the chief puppeteer of the character, as well as a creative consultant. Oz performed the puppet and provided the voice for Yoda in "The Empire Strikes Back" (1980), "Return of the Jedi" (1983), ' (1999), and ' (2017). Oz also provided the voice of the computer-generated imagery (CGI) Yoda in ' (2002) and ' (2005). The conversion to CGI was met with some criticism among fans, but Oz himself said that was "exactly what should have done." Oz had a great deal of creative input on the character and was himself responsible for creating the character's trademark syntax. Oz returned to voice Yoda in several Disney theme park attractions, "Star Tours–The Adventures Continue" and within as well as in the "Star Wars Rebels" episodes, "Path of the Jedi" and "Shroud of Darkness".