What is another word for "ego"?

Roget's Thesaurus (1911) lists these synonyms for "ego": abettor, ablegate, accessory, accident, accidental, accomplice, accredit, acquaintance, acting, adherent, adjunct, adjutant, adjuvant, adscititious, adventitious, advocate, after, all, ally, alter, ambo, amigo, and, angel, answer, apparent, appear, appearance, archon, ascititious, asomatous, assistant, associate, astral, auxiliary, backer, bedfellow, behalf, best, body.