Teddy (Kim Raver) does her best to dress the kids for Halloween. Schmitt (Jake Borelli) makes a young patient the perfect costume. Alex (Justin Chambers) and Jo (Camilla Luddington) decide to have a Halloween wedding at the courthouse to make their marriage legal. And Meredith bails her cellmate out of jail. Watch 'Grey's Anatomy' THURSDAY 8|7c on ABC.