Personation

(n.) The act of personating, or counterfeiting the person or character of another.

Thesaurus Entries

acting, aping, buffoonery, business, characterization, dumb show, embodiment, enacting, enactment, gag, ham, hammy acting, hoke, hokum, imitation, impersonation, incarnation, masquerade, mimesis, mimicking, mimicry, miming, mummery, overacting, pantomime, pantomiming, patter, performance, performing, personification, playacting, playing, portrayal, posing, projection, representation, slapstick, stage business, stage directions, stage presence, stunt, taking a role