The Grazerites were humanoid members of the Federation. Their facial features included a pronounced, deeply furrowed brow and a bovine snout. A layer of fine, downy fur covered their hide-thick skin. Two slightly curving horns, which could reach ten centimeters in length, crowned the Grazerite skull. In the early 2370s, fashion called for a tight-fitting cloth cowl to cover the horns. (DS9: "Homefront")
In the script for "Homefront", the Grazerites are described as "having evolved from herbivorous herd animals and as such loathe violence and confrontation."
Grazerite features are similar to those of a goat. Their name is likely a play on the term "graze," meaning to feed on grass, which is what goats do best.
When Herschel Sparber was cast as Jaresh-Inyo, Sparber was aware that the character was a Grazerite, though what the species would look like was unclear to the actor. "Of course nobody knew what a Grazerite was – yet!" Sparber exclaimed. "Most of the actors who auditioned for the role thought of antelopes and gazelles, but I thought of a wildebeest." The performer was under the impression that his unique take on how a Grazerite would behave won him the role. (Star Trek: Deep Space Nine - The Official Poster Magazine, No. 10) However, the DS9 writing staff actually wanted Grazerites to be "somewhat antelopelike," in the words of Robert Hewitt Wolfe. (Star Trek: Deep Space Nine Companion, p. 299)
The Grazerite prosthetic mask was fairly heavy. Each day of filming, it took three hours to be applied to the actor's face, and an hour for removal. (Star Trek: Deep Space Nine - The Official Poster Magazine, No. 10)
According to the reference book Star Trek: Star Charts, on the star chart United Federation of Planets III, the homeworld of the Grazerite, Grazer, was located in the Alpha Quadrant. Grazer was a Federation member.
Grazerites appear to have longer life spans than Humans, hinted at by Jaresh-Inyo, in DS9: "Paradise Lost", saying, "I have been in politics for over seventy years." Despite Jaresh-Inyo not having any obvious signs of old age.
The Last Unicorn Games RPG stated that the Grazerites hail from a planet called "Vacca III". (In reality, "vacca" is one of multiple Italian words for "cow".) According to Star Trek: Star Charts, however, the Grazerite homeworld is known as "Grazer" and is located near the Tholian Assembly.