Drifter
A drifter was a person who moves from place-to-place rather than settling down.

After Quark accidentally killed Kozak in 2371, Odo told him that the Klingon "wasn't just some drifter passing through" Deep Space 9, but the leader of the House of Kozak. ()

In 2372, when Tom Paris pretended to be leaving  to help to locate a mole in the crew, he said to Neelix that he considered himself to be a drifter. According to Paris, the life of a drifter consisted of having the "Freedom to do what you want, when you want. No rules to follow, nobody depending on you, right?" ()

See also 
 Tramp
 Traveler
 Vagrancy

External link

Societal classifications