GREY’S ANATOMY - “Haunted” – It’s Halloween night at Grey Sloan Memorial. Meredith and Nick try to spend some alone time together; Levi is stressed due to overworking, and Winston and Owen have the interns practice trauma training on a real cadaver on a new episode of “Grey’s Anatomy,” THURSDAY, OCT. 27 (9:00-10:01 p.m. EDT), on ABC. (ABC/Liliane Lathan)ANIELA GUMBS, ELLEN POMPEO

GREY'S ANATOMY - "Whistlin' Past the Graveyard" - Alex is hoping to impress investors at Pac-Gen North, but when he hears disturbing news about skeletons on the construction site grounds, he enlists Richard to help with distraction tactics. Teddy feels the pressure to be super-mom after tasking herself with creating original Halloween costumes for Allison and Leo, while Meredith fears she won't make it home in time for trick-or-treating with her kids. Elsewhere, Jackson tends to a pediatric patient who is upset she is spending her Halloween in a hospital on "Grey's Anatomy," THURSDAY, OCT. 31 (8:00-9:01 p.m. EDT), on ABC. (ABC/Kelsey McNeal)CAMILLA LUDDINGTON