μῑμ-ητής · mim-ētēs — LSJ
imitator, τινων X. Mem. 1.6.3, cf. Hp. Vict. 1.22, 1 Ep.Cor. 4.16; οἱ μ. τῶν γραμμάτων forgers, Lib. Ep. 115.4.
artist (cf. μίμησις II), Pl. R. 602a, al.; esp. one who impersonates characters, as an actor or poet, Arist. Pr. 918b28, Po. 1460a8.
coupled with γόης, mere actor, impostor, Pl. R. 598d, cf. Plt. 303c, Sph. 235a.