David Boreanaz, former Buffy the Vampire Slayer costar, has paid tribute to his costar Nicholas Brendon following his death on March 20 at age 54. Following Brendon's death, BoreanAZ shared a touching tribute to him in an Instagram post. He recalled their small moments together and their understanding of each other on set. The actor, who played Angel on the series, said Brendon carried "something real," not polished, but "some people leave a mark without trying."