20 Things You Didn't Know About It's Always Sunny In Philadelphia

8. Charlie Day, Rob McElhenney & Glenn Howerton's Wives Have All Appeared On The Show

It's Always Sunny In Philadelphia
FX

The wives of Charlie Day, Rob McElhenney and Glenn Howerton have all appeared on the show at various points.

For starters, Charlie Day got married to Mary Elizabeth Ellis - who plays The Waitress - the year after the first season aired, while Kaitlin Olson is of course Rob McElhenney's wife and a main cast member in her own right.

Sneakily completing the trifecta, then, is a cameo from Glenn Howeton's wife Jill Latiano, who played Dennis' pharmacist girlfriend Caylee in the legendary episode "The D.E.N.N.I.S. System." That's right - he ran D.E.N.N.I.S. on his own real-life wife.

Latiano is a model and part-time actress, with small credits to her name in other hit shows such as Sex and the City, CSI: New York, Ugly Betty, and Community.

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Stay at home dad who spends as much time teaching his kids the merits of Martin Scorsese as possible (against the missus' wishes). General video game, TV and film nut. Occasional sports fan. Full time loon.