Actors − Letter O
- Orlando Bloom (9 movies)
- Oscar Isaac (8 movies)
- Oliver Phelps (7 movies)
- Oleg Taktarov (4 movies)
- Octavia Spencer (3 movies)
- Oliver Ford Davies (3 movies)
- Owen Wilson (3 movies)
- Ole Dupont (2 movies)
- Ole Thestrup (2 movies)
- Olivia Munn (2 movies)
- Olivia Wilde (2 movies)
- Omar Sy (2 movies)
- Ona Grauer (2 movies)
- Orly Schuchmacher (2 movies)
- Ove Sprogøe (2 movies)
- O'Shea Jackson Jr. (1 movie)
- Obada Alassadi (1 movie)
- Obba Babatundé (1 movie)
- Oberon K.A. Adjepong (1 movie)
- Oded Fehr (1 movie)
- Og Blood (1 movie)
- Oksana Akinshina (1 movie)
- Oksana Semenova (1 movie)
- Ólafur Darri Ólafsson (1 movie)
- Olan Montgomery (1 movie)
- Ole Jacob Victor (1 movie)
- Ole Lemmeke (1 movie)
- Oleg Mirochnikov (1 movie)
- Olenka Wrzesniewski (1 movie)
- Olga Valentina (1 movie)
- Oliver Cotton (1 movie)
- Oliver Hollingdale (1 movie)
- Oliver Hvidtfeldt (1 movie)
- Oliver Jolliffe (1 movie)
- Oliver Maguire (1 movie)
- Oliver Reed (1 movie)
- Oliver Stone (1 movie)
- Oliver Walpole (1 movie)
- Olivia Anselmo (1 movie)
- Olivia d'Abo (1 movie)
- Olivia Newton-John (1 movie)
- Olivia Williams (1 movie)
- Olivier Girard (1 movie)
- Ollie Mitchell (1 movie)
- Olly Alexander (1 movie)
- Olov Ludwig (1 movie)
- Olutunji Ebun-Cole (1 movie)
- Omar Benson Miller (1 movie)
- Omar Doom (1 movie)
- Omar Hernandez (1 movie)