- O'Clair Alexander (1 movie)
- O'Shea Jackson Jr. (1 movie)
- Oakes Fegley (1 movie)
- Oakley Lehman (1 movie)
- Obba Babatunde (1 movie)
- Octavian Cadia (1 movie)
- Odd-Magnus Williamson (1 movie)
- Odessa Munroe (1 movie)
- Odessa Rae (1 movie)
- Odessa Sykes (1 movie)
- Odine Johne (1 movie)
- Odnyam Odsuren (1 movie)
- Ofelia Medina (1 movie)
- Ofilio Portillo (1 movie)
- Og Blood (1 movie)
- Ohga Tanaka (1 movie)
- Okan Avci (1 movie)
- Oksana Akinshina (1 movie)
- Okwar Jale (1 movie)
- Okwui Okpokwasili (1 movie)
- Ola Ray (1 movie)
- Ola Sturik (1 movie)
- Olan Montgomery (1 movie)
- Olav Pedersen (1 movie)
- Ole Christian Madsen (1 movie)
- Ole Martin Aune Nilsen (1 movie)
- Oleg Shtefanko (1 movie)
- Oleg Sosnovikov (1 movie)
- Oleksandr Choroshko (1 movie)
- Olga Bisera (1 movie)
- Olga Dickie (1 movie)
- Olga Fedori (1 movie)
- Olga Karlatos (1 movie)
- Olga Nardone (1 movie)
- Olia Voronkova (1 movie)
- Olive Deering (1 movie)
- Oliver Clark (1 movie)
- Oliver Coleman (1 movie)
- Oliver Coopersmith (1 movie)
- Oliver Cotton (1 movie)
- Oliver Dimsdale (1 movie)
- Oliver Driver (1 movie)
- Oliver Hudson (1 movie)
- Oliver Jenkins (1 movie)
- Oliver Kalkofe (1 movie)
- Oliver Lehne (1 movie)
- Oliver Maguire (1 movie)
- Oliver Masuda (1 movie)
- Oliver Milburn (1 movie)
- Oliver Payne (1 movie)