Interions are a humanoid species on Farscape. Jool, one of Moya's crew members during the third season, is an Interion. Others seen on the series include Vella and Tarnat.
They are physiologically similar to humans; they were a perfect biological donor for John Crichton in "Die Me, Dichotomy." An Interion's scream can bend metal due to its frequencies, and their hair, which undergoes heavy, periodic shedding, changes color when they experience negative emotions.
Interion society is largely insulated from violence and places a strong emphasis on intellectual achievement. Members of the Interion elite often pursue extensive education, and individuals such as Jool demonstrate expertise across multiple disciplines, especially in the sciences. They also value comfort, material luxury, and personal hygiene.