- Ozzy Osbourne (1 movie)
- Ozman Sirgood (1 movie)
- Oz Perkins (2 movies)
- Oz Kalvan (1 movie)
- Owen Wilson (8 movies)
- Owen Vitullo (1 movie)
- Owen Teale (1 movie)
- Owen Teague (4 movies)
- Owen Masterson (1 movie)
- Owen Martin (1 movie)
- Owen Hughes (1 movie)
- Owen Good (1 movie)
- Owen Finnegan (1 movie)
- Owen Burke (2 movies)
- Owen Atlas (1 movie)
- Ousaun Elam (3 movies)
- Oury Milshtein (1 movie)
- Otto Sanchez (1 movie)
- Otto Jespersen (3 movies)
- Otto Carlmar (1 movie)
- Ottaviano Dell'Acqua (1 movie)
- Otis Winston (3 movies)
- Otis Dhanji (1 movie)
- Otillia Gupta (1 movie)
- Otgadahe Whitman-Fox (1 movie)
- Osy Ikhile (2 movies)
- Ossie Davis (1 movie)
- Osman Ragheb (1 movie)
- Oskar Ulvestad (1 movie)
- Oskar Pask (1 movie)
- Oscar Torre (1 movie)
- Oscar Salem (1 movie)
- Oscar Rodriguez III (1 movie)
- Oscar Pearce (1 movie)
- Óscar Oliver (1 movie)
- Oscar Nunez (1 movie)
- Oscar Novak (1 movie)
- Oscar Lesage (1 movie)
- Oscar Jennings (1 movie)
- Oscar Jean (1 movie)
- Oscar James (1 movie)
- Óscar Jaenada (4 movies)
- Oscar Isaac (6 movies)
- Oscar Gale (1 movie)
- Oscar Fabila (1 movie)
- Oscar Beregi Jr. (1 movie)
- Oscar Balderrama (1 movie)
- Oscar Avila (1 movie)
- Osamu Shigematu (1 movie)
- Os Leanse (1 movie)