I am right on this : a cameo is uncredited?
Originally meaning "a small piece of artwork", the term was borrowed by director Michael Anderson (I) when attempting to attract famous actors to play bit parts in Around the World in 80 Days (1956).
1. Alfred Hitchcock - Psycho (appeared in a cowboy hat)2. The Wachowski Brothers - The Matrix (Window Cleaners)3. Peter Jackson - Lord of the Rings (towner in FOTR, archer in TTT, pirate in ROTK)4. Lucio Fulci - Perversion Story (The graphologist)5. Phillip Noyce - The Bone Collector (Antique Bookshop Customer)6. George Romero - The Crazies (Mayor of Evans City)7. M. Night Shyamalan - The Village (Guard at desk)8. M. Night Shyamalan - Unbreakable (Stadium Drug Dealer)9. M. Night Shyamalan - The Sixth Sense (Dr. Hill)10. Peter Jackson - The Frighteners (punk who bumps into Fox)11. Hal Needham - Cannonball Run ( outtakes through end credits)12. Martin Scorcese - The Aviator (Hell's Angels Projectionist)13. George A. Romero - Dawn of the Dead (director at TV station)14. Federico Fellini - Roma (as himself)