Marc Sebastian is a fictional character portrayed by Marc Sebastian in the TV series Gossip Girl.
They appear in 1 episodes out of a total of 22 aired
Episodes1
Just Another Girl on the MTA
episode S1.E1 july 2021As the school year begins for New York's elite, a new student at Constance St. Jude's finds herself thrust into the spotlight, while a mysterious presence threatens to shake the status quo.