THESAURUS
lone wolf
alien, careerist, case, character, crackpot, crank, eccentric, egotist, fanatic, fortune hunter, hermit, hobo, hog, individualist, kook, loner, maverick, meshuggenah, monopolist, narcissist, natural, nonconformist, nut, odd fellow, oddball, oddity, original, outsider, pariah, queer duck, queer fish, queer specimen, rara avis, road hog, screwball, self-advancer, self-pleaser, self-seeker, self-server, solitary, temporizer, timepleaser, timeserver, tramp, tufthunter, type, zealot