Banjamin Chang
Occupation: Spanish teacher
First appearance: "Spanish 101"
Portrayer: Ken Jeong

Benjamin "Ben" Chang, usually referred to as Señor Chang, was the unhinged Spanish teacher at Greendale Community College. He can be quite theatrical at times (once even faking his own death to get a rise out of his students), and also has a huge ego and anger-management issues. These over the top personality traits veil deep issues of being left by his wife, with whom he was later re-united, although this did not hinder his rash behavior towards his students afterward (likely due to Jeff Winger's attempt to exploit the situation.) His brother is Rabbi Chang, who ironically criticizes Señor Chang on his confusing title and behavior. He enjoys jetting around on a scooter, plays the keytar as an instrument, and he has a history of having his clothes stolen from the local YMCA. According to Chang in "Modern Warfare," he plays paintball three times a week, and uses his skills against Jeff and Britta. At the end of the first season it is revealed that he doesn't actually have any teaching qualifications and that, like Jeff, he will have to attend Greendale as a student in order to get a degree.

Chang has an antagonistic relationship with almost every student and faculty member at Greendale. He is on especially bad terms with Professor Duncan, who potentially foreshadows Chang's lack of teaching qualifications early in the series when he notes Chang demands to be called "Señor" because he is not a real professor. In the first season finale, Chang and Duncan come to blows when Chang becomes a student and Duncan is suspended from teaching, resulting in a physical battle at the end of the year dance.

His self-proclaimed nickname is "El Tigre Chino" and he owns a black jacket which has on the back that moniker and the image of a Bengal tiger. His office features a portrait of him as a matador with "El Tigre" at the bottom and a statue of a tiger.

In the second season, he is in the same anthropology class as the study group. In "Anthropology 101", after he asks the study group to let him join them, he is then seen in the study room secretly plotting his revenge on them for getting him fired, switching between evil and good sides in a manner similar to the character Gollum from The Lord of the Rings.