Charlie Day has expressed his interest in making a cameo appearance in his wife Mary Elizabeth Ellis’ latest show, “A Man on the Inside.” The actor shared his excitement exclusively with PEOPLE at the It’s Always Sunny in Philadelphia 20th anniversary celebration on July 1. Day and Ellis have previously worked together on It’s Always Sunny, where Ellis portrayed The Waitress, the enduring crush of Day’s character, Charlie Kelly. The couple, who tied the knot in 2006, share a 13-year-old son named Russell Wallace.
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During the event in Los Angeles, Day mentioned his enthusiasm for potentially appearing on Ellis’ current project, A Man on the Inside, a Netflix comedy series. Ellis stars in the show as Emily, the daughter of widower and retired college professor Charles Nieuwendyk, played by Ted Danson. This character takes on an investigative role and goes undercover at a San Francisco retirement home in search of a missing ruby necklace. The show premiered in November 2024 and has been renewed for a second season set for release later this year.

Day humourously remarked on the idea of playing a senior character for his cameo, joking that he would be open to incorporating aging makeup or a limp if needed. He commended Ellis for her exceptional work on the series, expressing his pride in her performance and the recognition she has garnered. Day highlighted Ellis’ versatility as an actor, noting her previous roles in projects like “Licorice Pizza” and praising her talent in each endeavour.
The actor also praised the opportunity for Ellis to collaborate with accomplished industry professionals on the set of A Man on the Inside. Drawing attention to renowned showrunner Mike Schur and co-stars like Ted Danson and Mary Steenburgen, Day shared his excitement about Ellis’ growth as an actor and the chance to reach a broader audience through the series. Day’s supportive comments underscore his admiration for Ellis’ dedication to her craft and the success she has achieved in her career.
In their prior collaboration on It’s Always Sunny in Philadelphia, Ellis portrayed The Waitress, a character who served as the object of Charlie Kelly’s unreciprocated affection throughout the series. With Day serving not only as a lead actor but also a writer and executive producer on the show, the couple’s professional partnership has extended beyond their shared screen time. Their real-life relationship, which began with a wedding in New Orleans in 2006, has flourished, culminating in the birth of their son, Russell Wallace, in December 2011.
The couple’s history of working together on It’s Always Sunny has solidified their on-screen chemistry and showcased their ability to bring their characters to life with authenticity and humour. As Day contemplates a potential cameo on A Man on the Inside, fans of the duo eagerly anticipate the possibility of seeing them reunite on screen once again. The mutual respect and support between Day and Ellis undoubtedly contribute to their success as a couple in both their personal and professional lives.
