- Osric Chau (2 movies)
- Otto Sanchez (1 movie)
- Ousaun Elam (1 movie)
- Owain Yeoman (1 movie)
- Owen Best (1 movie)
- Owen Burke (2 movies)
- Owen Clarke (1 movie)
- Owen Finnegan (1 movie)
- Owen Judge (1 movie)
- Owen Martin (1 movie)
- Owen Roe (1 movie)
- Owen Sharpe (1 movie)
- Owen Smith (1 movie)
- Owen Teale (1 movie)
- Owen Vaccaro (1 movie)
- Owen Williams (1 movie)
- Owen Wilson (21 movies)
- Oxmo Puccino (1 movie)
- Oz Perkins (2 movies)
- Ozan Tas (1 movie)
- Özcan Özdemir (1 movie)
- Ozzy Osbourne (2 movies)
- P. J. Byrne (1 movie)
- P. Lynn Johnson (1 movie)
- P.J. Kerr (1 movie)
- Pablo Adán (1 movie)
- Pablo Calva (1 movie)
- Pablo Raybould (1 movie)
- Pablo Schreiber (2 movies)
- Pablo Scola (1 movie)
- Pablo Verdejo (1 movie)
- Pablo Verón (1 movie)
- Paddi Edwards (1 movie)
- Paddy Considine (6 movies)
- Paddy Curran (1 movie)
- Paddy Ward (1 movie)
- Padmini Ramachandran (1 movie)
- Page Leong (2 movies)
- Paige Diaz (1 movie)
- Paige Meade (1 movie)
- Paige Tamada (1 movie)
- Paige Turco (3 movies)
- Pál Makrai (1 movie)
- Pål Sverre Hagen (1 movie)
- Pål Sverre Valheim Hagen (1 movie)
- Palma Lawrence Reed (1 movie)
- Paloma Baeza (1 movie)
- Paloma Faith (1 movie)
- Paloma Felisberto (1 movie)
- Paloma Guzmán (1 movie)