Estelle Leonard (June Gable) is Joey's talent agent. Gable made her first appearance as Estelle in "The One with the Butt", but the scene was cut for timing reasons although it is included in the DVD version of season 1 (she is still mentioned after Joey's play in the original episode that aired). She makes her first proper appearance in "The One with Russ", when, after Joey tells Estelle he is fed up of poor roles, she gets him a recurring part in "Days of Our Lives". She witnesses Marshall Townend read a critical review of a play he had directed which Joey had starred in and along with everyone else in the room is bemused by the quirks of both Joey and Marshall in "The One with the Screamer".

Although she is shown to be supportive of Joey's career over the course of the show, in one episode, however, she appears to undermine his career after getting the impression that Joey had left her as an agent, which he, in reality, had not. She dies in the last season; Joey gives a speech at her memorial service, where it is revealed that her only other client is Al Zebooker, a man who eats paper.

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