In the opening episode of the fourth season, a replacement for Chico was introduced. Instead of an adult, the producers brought in 12-year-old Raul, played by Gabriel Melgar. His first appearance came when Ed and Louie go on a fishing trip to Tijuana and find the Mexican orphan hiding out in their trunk on their return. At the end of this episode, Ed is putting Raul to bed and accidentally calls him Chico. Raul corrects him and Ed remarks, "You're all Chicos to me." Ed eventually adopts Raul, only to have Raul's overprotective Aunt Charo – played by actress/singer Charo – come from Spain and try to become a part of the "family", as well.