Premiere Of FXX's 'It's Always Sunny In Philadelphia' Season 12 And "Man Seeking Woman" Season 3 - Arrivals
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Take a look at Mary Elizabeth Ellis and share your take on the latest Mary Elizabeth Ellis news. Mary Elizabeth Ellis is an actress known for playing The Waitress on the television sitcom It's Always Sunny in Philadelphia. She is also married to Charlie Day, a writer, producer and actor on the show.