Kaitlin Olson has a knack for playing underestimated women. On her long-running sitcom "It's Always Sunny in Philadelphia," she's Dee, perpetually insulted by her pals and coworkers at Paddy's Pub.

It's easy for Morgan Gillory (Kaitlin Olson) to see patterns no one else ... and color of their facial hair," Wachtel said.

Actor Rob McElhenney and his wife Kaitlin Olson were co-stars long before they ... photo of a young Kaitlin rocking some ...

Arizona,' which co-stars Kaitlin Olson, Luke Wilson and Rosemarie DeWitt, is in theaters and On Demand on Aug. 24. ET has an exclusive look at the dark comedy, about murder and mayhem during the ...