Seargeoh Stallone was an American actor, he was the brother of Sage Stallone and the son of Sylvester Stallone. He appears in the 1979 film, Rocky II as a baby. It was his only role in the Rocky saga.
Aged three years old, he was diagnosed with autism. International Robotics Inc. CEO and creator Robert Doornick built a robot named Sico in New York to help treat Seargeoh. Sico the robot appeared in Rocky IV as Paulie's Robot, and was voiced by Doornick himself.