Smith is a spaceship pilot and smuggler who lives in an undisclosed future time when humanity has colonized the Solar System.
The relationship of the "planetary primitives" to the earth colonists is analogous to the situation of Native Americans, Africans and other indigenous people facing colonialism.
Smith is described as a dark haired man with "space bronzed" skin and pale eyes, who wears brown spacer's leathers and carries a raygun at his side like an old west gunfighter.
Moore traced the origin of the character's name to the typing work which she was doing for a living while writing Shambleau and which included a letter addressed to a "Mr.
Northwest Smith is sometimes compared to the Star Wars character Han Solo; both are violent, gun-wielding, rogue smugglers with hearts of gold who travel among planets that are stand-ins for existing Earth cultures.