[TMC]

http://screenrant.com/worst-terrible...actors-ruined/

1. GERTRUDE MOON – FRASIER

There is an episode of The Simpsons called “The Itchy & Scratchy & Poochie Show”, where a character named Roy is added to the show for a single episode. This was a response to a request by one of the executives at Fox that the writers should add a college-age character to the show. That kind of request is fairly common, as lots of shows have had to endure the addition of a sexy twenty-something to the cast in an effort to add intrigue and interest.

The creators of Frasier decided to go the Bizarro route and added a thoroughly loathsome and unlikable old woman to the cast of the show. Gertrude Moon was the mother of Daphne, who became a recurring character in the last few seasons of the show.

She eventually moved in with Daphne and Niles, which allowed her to become more involved in the lives of the cast. There isn’t a single redeeming quality about Gertrude Moon: she is nasty, loathsome, and manipulative to those who are kind to her. Nothing could kill your interest in the plot of a Frasier episode than an old woman who complained all of the time.

The actress who played Gertrude was Millicent Martin, who played a character so utterly unlikable that she made you want to change the channel more than you wanted to see her get her comeuppance.