- O.B. Babbs (1 film)
- Odette Talazac (1 film)
- Oisin Conroy (1 film)
- Oisin Murray (1 film)
- Olga Baclanova (1 film)
- Olga Créancier-Werckmeister (1 film)
- Olga Milshtein (1 film)
- Olga Roderick (1 film)
- Oliver Bodart (1 film)
- Oliver McGrath (1 film)
- Olivia Cooke (1 film)
- Olivia Manning (1 film)
- Olivia Perez (1 film)
- Olivier Bony (1 film)
- Olivier Gourmet (2 films)
- Olivier Loustau (1 film)
- Olivier Ringer (1 film)
- Onrwa Madi (1 film)
- Oriana Chen (1 film)
- Osamu Shitara (1 film)
- Oscar Douieb (1 film)
- Oscar Pauleau (1 film)
- Otávio Augusto (1 film)
- Otto Wernicke (1 film)
- Oulaya Amamra (1 film)
- Owen Campbell (1 film)