Iorrans are humanoids from the planet Iorr that average about 1.7 meters in height and often weigh more than 100 kilograms. They are quite strong, and are generally considered less intelligent than the norm. On their home planet Iorrans exist in a sort of tribal political system dominated by the females. The Iorrans' entire year is centered around war with other tribes. Males will train in the spring, fight to the death all through the summer, and heal their wounds in the fall and winter, only to start again the next season.
As a result of their physical characteristics and low intelligence, Iorrans away from their home planet are usually employed as mercenary fighters, guards, or heavy labourers. For example, some crime bosses are fond of hiring them because they are so inexpensive.