Rodians are a sentient species, originating from the swamp planet of Rodia. Although these humanoid reptilian creatures typically possess scaled green skin, some rarer pigments that they have been known to proudly flaunt include both blue and purple. Their most striking feature is perhaps their large glassy eyes, known to unsettle fellow sentients because of their lack of pupils, therefore giving the impression of omniscience. Although capable of being able to speak Galactic Basic Standard, many struggle with the grammatical side of the language and choose instead to rely on their native language, Rodese.
The Rodians are most famously known for their ruthless skills as bounty hunters, many joining the ranks of the gangster clans of the Hutts. The Hutt crime lord Jabba Desilijic Tiure (Jabba the Hutt) was known the favour the species, and had the most famous Rodian of all, Greedo, on his payroll. Other notable members of the species include Onaconda Farr, who was a Galactic Republic senator shortly before the rise of the Galactic Empire. Another was Wald, a childhood friend of Anakin Skywalker on Tatooine.
The species made its first appearance in the Star Wars universe during the 1977 movie Star Wars: Episode IV A New Hope, when the aforementioned Greedo converses with Han Solo in the Mos Eisley cantina. Although Greedo died at the hands of Solo, he did feature alongside Anakin and Wald in a deleted scene for Star Wars: Episode I The Phantom Menace.
Image Sources: Star Wars: The Clone Wars, Chris Trevas