Amy Jo Johnson (born October 6, 1970) is an American actress, singer, songwriter and musician.Johnson is currently playing Julianna “Jules” Callaghan in the Canadian CTV TV series Flashpoint. The series also airs in the U.S. on the CBS network on Fridays, now in its second season as of 2008-09, after a trial-run first season as a summer replacement in 2008. It garnered high ratings during its summer 2008 tryout, leading CBS to order a somewhat surprising full 22-episode second season. Flashpoint continues to receive high ratings in its timeslot between Ghost Whisperer and Numb3rs.