|Weaknesses||Their weapons are ineffective to Zurg's forces|
|Average Height||Around 3 feet|
|Hair Color||Varies on individuals, some bald|
|Eye Color||White on Dark Green|
|Skin Color||Light Green|
|Characteristics||Dressed like Americans during the 1940's-1950's|
|First Appearance||Strange Invasion|
|Last Appearance||Holiday Time|
Physiology: The Roswellians are a small race but are slightly taller than the LGMs. They have olive-colored skin, opaque eyes, four fingers on their hands, and eyelids which shut vertically rather than horizontally.
Habitat: The Roswellians live next to a vast and barren desert. Whether this is indicative of the state of their entire planet is unknown.
Diet: They seem to eat the same food that humans and LGMs eat.
Roswellian culture mirrors that of mid 20th century America. The few that have been seen live in a closely-knit small town. Their means of transport are automobiles from the mid-twentieth century, such as Army jeeps and Ford Trucks.
The citizens wear stereotypical mid-century attire. Female Roswellians, such as Becky, wear their hair in curls, or in buns, and wear dresses. Males wear shirts and pants, occasionally with jackets or hats.
They have radio and may have television, and their technology capable communications with other species is limited to a single console in a top-secret facility.
Their military functions similarly, and has technology analogous to, the mid-century United States Air Force.
- Becky's father and the barber sound and act very much like another small town sheriff and barber, Andy Griffith and Floyd Lawson from The Andy Griffith Show! 
- Roswellians, in terms of appearances, resemble Greys - diminutive, with frail bodies, large heads and large black eyes.