 I thought Mr. Schlegel might want a snack. Benji Gregory was best known for his role in the 1980s TV situation comedy ALF. TMZ says that the 46-year-old Gregory and his service dog were found dead June 13th inside a car parked outside of a Chase Bank in Peoria. Gregory's cousin posted on Facebook Wednesday that heat exhaustion was the cause of death, but that has not been confirmed by the medical examiner. Bob McClay, Arizona News Radio.