Katharine McPhee Joins CBS Drama Pilot

Actress Katherine McPhee attends The Elizabeth Taylor AIDS Foundation Art Auction Benefit Presented By Wilding Cran Gallery on February 27, 2014 in Los Angeles, California. Photo: Frazer Harrison/Getty Images

Smash alum Katharine McPhee has been cast in a CBS drama, according to THR. She'll play a "working-class hero and diner waitress" on Scorpion, a show about an ensemble of geniuses; said waitress is not among the geniuses, of course, but is instead "a nanny of sorts and a translator for … socially misunderstood masterminds." Probably with her special lady-powers of understanding! No word yet on whether this waitress will sing, but maybe it will come about in a scene where the geniuses have assumed no one else has an interior life and then boom, it turns out they do.