Nomad

Nomads are vampires who wander around within a chosen area due to their dietary choice. All or most nomads are normal in their choice of diet, drinking human blood as opposed to the "vegetarian" diet practiced by the Cullen coven and the Denali coven. Most nomads live in North America. Most vampires are nomads and it is more common to be a nomad than a vampire that lives in a coven.

Twilight
There are few nomadic vampires in Twilight, as the novel serves mostly as an introduction to vampires and their culture. However, what action there is involving nomads is crucial to both the plot of Twilight and the plots of New Moon and Eclipse. James' coven, consisting of himself, Victoria, and Laurent, shows up while the Cullens are playing baseball, and James immediately begins hunting Bella—partially because of the way that Edward defends her, and also because her blood smells so tempting to any vampire, despite the particular potency that it holds for Edward. James tracks Bella to Phoenix, Arizona, but is killed by Emmett and Jasper before he can kill Bella.

New Moon
Victoria shows up again in New Moon after Edward leaves, planning to kill Bella (in this way she would avenge James' death--rather than killing Edward, Emmett, or Jasper, all of whom had a hand in destroying him, she decides to kill Bella--as she puts it, "mate for mate"). Laurent also comes back and is subsequently killed by the werewolves, although he is not really a nomad by that point as he has joined Tanya's coven in Denali, Alaska.

Eclipse
In Eclipse, Victoria comes back with an army of Nomadic vampires, as Victoria's coven of newborns is Seattle-based.

Breaking Dawn
Breaking Dawn has the most interaction with nomads, as many vampires come from all over the world to testify for the Cullens that Renesmee is not an immortal child but a half-human. The nomads who come to Forks (and others) are listed below.

Known Nomads

 * James (killed by Edward Cullen)
 * Victoria (killed by Edward Cullen)
 * Laurent (was killed by wolf-pack)
 * Garrett (was nomad until joined Denali Coven)
 * Mary
 * Randall
 * Peter
 * Charlotte
 * Alistair
 * Charles
 * Makenna