Robert Carradine -- the actor best known for his roles in "Lizzie McGuire," "Revenge of the Nerds," and "The Long Riders" -- died in a hospital ... TMZ has learned. The Los Angeles County Medical Examiner revealed Robert's place of death in…

Actor Robert Carradine, a member of the famous acting family best known for his roles in the films The Long Riders and Revenge of the Nerds and the series Lizzie McGuire, passed away at the age of 72.