Grover is a security guard at the temporarily closed Wally World theme park visited by the Griswolds in National Lampoon's Vacation. At BB gunpoint, Grover is ordered to the ground by Clark Griswold, who then takes another security guard with him and his family to ride various rides in the closed theme park. It is likely Grover who later alerts the authorities, which results in a SWAT team apprehending the family, only to have charges dropped by Mr. Roy Wally. Grover is present when the Griswolds are apprehended.