Five years after they played childhood sweethearts Colleen and J.T. on THE YOUNG & THE RESTLESS, Lyndsy Fonseca and Thad Luckinbill are about to be reunited on the screen once again! Last week, Fonseca -- currently starring as Alex in the hit CW drama NIKITA -- posted a photo on her Twitter page of herself with Luckinbill accompanied by the cryptic message "On set" and another saying "Just like old times." Soaps In Depth can now confirm that Luckinbill will guest star on an upcoming episode of NIKITA! "Thad will be appearing as Nathan, Alex's neighbor in the episode titled 'Free,'" reveals a spokesperson for The CW. Although an official air date has not yet been set, Luckinbill's episode will likely air in January.