Yoda is a fictional character in the Star Wars universe, appearing in the three prequel trilogy films as well as the second and third original films. In the prequels, Yoda was the head of the Jedi Council. Yoda was responsible for much of Luke Skywalker's training in Star Wars Episode V: The Empire Strikes Back. In his last chronological appearance, Yoda dies in Star Wars Episode VI: Return of the Jedi, at about 900 years old. He is widely considered to be the greatest Jedi of all time and trained many Jedi, including Luke.
Carl played Yoda in Something, Something, Something, Dark Side and It's A Trap!, resulting in Yoda's acquisition of Carl's taste in movies. In the latter of these two episodes, his full name is revealed to be Yoda Parseghian when Luke Skywalker (Chris) tries to use the late Jedi's credit card.