Chace Crawford is honoring his Gossip Girl co-star ... who played Nate Archibald on the popular CW series–began his Instagram ...

I Loved Her' Chace Crawford, who played Nate Archibald on Gossip Girl, also paid tribute to his late costar on Instagram. "Michelle was one of a kind," the actor, 39, shared in the post.

Following the tragedy, Gossip Girl alumni—including Blake Lively, Chace Crawford, and Ed Westwick—paid tribute to Trachtenberg, recalling sweet memories of their time spent on set together and how the ...