who is katharine mcphee dating
By Stephanie Webber. Katharine McPhee is dating her Scorpion costar Elyes Gabel, Us Weekly can exclusively confirm -- get the details on their sexy new romance Credit: Ethan Miller/Getty Images. What a smashing surprise! Katharine McPhee is dating her Scorpion costar Elyes Gabel behind the scenes, Us Weekly can exclusively confirm. McPhee, 30, and the British actor, 31, had eyes (and hands) only for each other when they were photographed kissing between takes on the L.A. set of their freshman CBS series on Aug. 15.