- Obba Babatundé (1 movie)
- Obioma Ugoala (1 movie)
- Octavio Gómez Berríos (1 movie)
- Odd Woldstad (1 movie)
- Odd Wolstad (1 movie)
- Odette Benatar (1 movie)
- Ofu Obekpa (1 movie)
- Ohga Tanaka (1 movie)
- Ola Björkqvist (1 movie)
- Olaf Johannessen (1 movie)
- Olan Montgomery (1 movie)
- Olaniyan Thurmon (1 movie)
- Ole Andreasen (1 movie)
- Ole Boisen (1 movie)
- Ole Ishøy (1 movie)
- Ole Jacob Victor (1 movie)
- Ole Neumann (1 movie)
- Ole Tage Hartmann (1 movie)
- Ole Wisborg (1 movie)
- Oleg Nasobin (1 movie)
- Olegar Fedoro (1 movie)
- Olesia Shewchuk (1 movie)
- Olga Babtchinskaia (1 movie)
- Olga Bisera (1 movie)
- Olga Fonda (1 movie)
- Olia Klein (1 movie)
- Oliver Broumis (1 movie)
- Oliver Chris (1 movie)
- Oliver Hawkes (1 movie)
- Oliver Hvidtfeldt (1 movie)
- Oliver Jørck (1 movie)
- Oliver Maguire (1 movie)
- Oliver Maltman (1 movie)
- Oliver Methling Søndergaard (1 movie)
- Oliver Milburn (1 movie)
- Oliver Sobol (1 movie)
- Oliver Walpole (1 movie)
- Olivia Colman (1 movie)
- Olivia d'Abo (1 movie)
- Olivia Fuglsang-Laviana (1 movie)
- Olivia Grant (1 movie)
- Olivia Holden (1 movie)
- Olivia Hussey (1 movie)
- Olivia Jordan (1 movie)
- Olivia Mattingly (1 movie)
- Olivia Munn (1 movie)
- Olivia Newton-John (1 movie)
- Olivia Olson (1 movie)
- Olivia Quinn (1 movie)
- Olivia Stenderup Garre (1 movie)