In the past year, Sam Page (ex-Trey, ALL MY CHILDREN) has appeared in story arcs on the hit dramas GREEK, DESPERATE HOUSEWIVES and MAD MEN... and now, he's adding GOSSIP GIRL to the list! The actor has joined the cast of the CW show for a multi-episode arc as a Columbia University teacher who captures the attention of Blake Lively's Serena. Page's first episode airs on Monday, October 11, at 9 p.m. EST.

Keep up with your fave celebs in the pages of ABC Soaps In Depth by subscribing now!