Kaitlin Olson and Rob McElhenney have celebrated their eldest son Axel’s 10th birthday with a sweet family picture, proving they’re nothing like their It’s Always Sunny alter egos.Kaitlin, who plays Dee, posted a picture of herself dressed up as a cat, while holding her son Axel, who was laughing away while dressed as a Teenage Mutant Ninja Turtle.Meanwhile, It’s Always Sunny creator Rob, who plays Mac on the show, had their youngest child Leo, now eight, sitting on his lap.Olson, 45, captioned the picture: ‘Happy 10th birthday to my big boy who wouldn’t be caught dead in a Ninja Turtle costume anymore, but who still sits on my lap and who’s laugh still melts my cold, dead heart [sic].’Followers remarked on how much Axel looked like Rob in.
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