Benji Gregory, who starred as Brian Tanner on the 1980s sitcom ALF, has died in Arizona of a suspected heatstroke, according to his family. He was 46 years old. Gregory was found dead along with his service dog Hans inside a car at Peoria, Arizona, on June 13, according to his sister Rebecca, who announced his death on Wednesday night. Rebecca said Gregory was found in the parking lot of a Chase bank but never made it out of his car. “We believe he went there the evening of the 12th to deposit some residuals,” she said. “He fell asleep and died from vehicular heatstroke.” Gregory had suffered …