“Jaws 2” child actor Marc Gilpin has died. He was 56. The actor was mostly known for playing Sean Brody, the young son of Roy Scheider’s Martin Brody, in the 1978 shark-infested sequel. His sister and “Frasier” actress Peri Gilpin confirmed the news of his death on Tuesday to the Hollywood Reporter. Marc suffered from glioblastoma, a form of brain cancer, and died at his home in Dallas, Texas, on July 29. Peri, known for playing Frasier’s producer Roz Doyle on the sitcom, also paid tribute to her brother and his wife, Kaki Gilpin, in an emotional Instagram post. “Kaki...