found: It's always sunny in Philadelphia. Seasons 1 & 2, 2007:opening credits (Kaitlin Olson)
found: IMDb WWW site, Oct. 16, 2007(Kaitlin Olson, actress; b. Aug. 18, 1975 in Portland, OR)
found: It's always sunny in Philadelphia, Complete season 10, 2015:opening credits (Kaitlin Olson)
found: Wikipedia, February 2, 2016:(Kaitlin Olson, American actress; full name, Kaitlin Willow Olson; graduated from the University of Oregon with a B.S. in theater arts, 1997; active in film and television since 2000)