Mary Lynn Rajskub

Mary Lynn Rajskub (;) is an American actress and comedian who is best known for portraying Chloe O'Brian in the action thriller series ''24'' and Gail the Snail in ''It's Always Sunny in Philadelphia''. Rajskub was a regular cast member on HBO's ''Mr. Show with Bob and David'', appeared in ''The Larry Sanders Show'', ''Brooklyn Nine-Nine'', and ''Veronica's Closet,'' and such films as ''Dude, Where's My Car?'', ''Firewall'', ''Sweet Home Alabama'', ''Punch-Drunk Love'', ''Mysterious Skin'', ''Little Miss Sunshine'', ''Sunshine Cleaning'', ''Safety Not Guaranteed'', and ''The Kings of Summer'', among others. Provided by Wikipedia