Sylvester Gardenzio Stallone (born July 6, 1946), nicknamed Sly Stallone, is an American actor, filmmaker, screenwriter, and film director, known for his machismo and action roles. Two of the notable characters he has portrayed include boxer Rocky Balboa and soldier John Rambo.
When Stallone was born, doctors used forceps that severed a nerve and caused paralysis in parts of Stallone's face, resulting in his signature slurred speech and drooping lower lip.
Representing what would happen if the British took away action films, Peter Griffin imagines Arnold Schwarzenegger and Stallone co-starring in a romantic film titled I Remember Cecil in "One if by Clam, Two if by Sea".
His speech impediment is parodied in "Sibling Rivalry" where he stars in a movie with Tony Danza called What?. Stewie Griffin is in a Rambo costume as well but he decides to have a face off with his half-brother Bertram.
A pornographic film starring Stallone is part of Brian's frequently-shown compilation tape, as revealed in "The Man with Two Brians".
When Stewie's experiment turns him into a monster in "Baby Stewie", Brian decides he needs to seek help noting that even Sylvester Stallone needs help. A cutaway gag shows an assistant helping him pick out various body features to wear.