Synonyms to monomaniac

aficionado, Maecenas, abettor, admirer, advocate, amateur, angel, apologist, attender, audience, authority, backer, buff, bug, champion, connoisseur, crank, critic, defender, dependence, devotee, dilettante, encourager, endorser, energumen, enthusiast, expert, exponent, fan, fanatic, fanatico, favorer, freak, frequenter, friend at court, habitue, haunter, infatuate, lover, lunatic fringe, mainstay, maintainer, nut, paranymph, partisan, patron, promoter, protagonist, pundit, reliance, savant, scholar, second, seconder, sectary, sider, specialist, spectator, sponsor, stalwart, standby, support, supporter, sustainer, sympathizer, technical expert, technician, theatergoer, upholder, visitor, votary, well-wisher, zealot, obsessed, absorbed, absorbed in, affected, agonized, bedeviled, beset, besotted, bewitched, buried in, caught up in, contemplating, contemplative, devoted, devoted to, devoured by, dogged, dominated, engaged, engrossed, engrossed in, fixated, ghost-haunted, ghost-ridden, gripped, hag-ridden, harassed, haunted, held, hipped, hung-up, imbued with, immersed in, impressed, impressed with, infatua