Spencer Grammer, who voices Summer Smith in Rick & Morty, has been hospitalized after being attacked by a knife-wielding maniac. As reported by TMZ, the incident happened late on Friday night at a restaurant called The Black Ant in New York's East Village. The establishment was beginning to close when an apparently drunken man turned up demanding service. After he was told to leave, he went berserk, pulled out a knife and started indiscriminately attacking staff and customers.