- Oscar Isaac (12 movies)
- Octavia Spencer (11 movies)
- Owen Wilson (11 movies)
- Orlando Bloom (10 movies)
- Oliver Phelps (8 movies)
- Oh Dal-su (7 movies)
- Olga Kurylenko (7 movies)
- Olivia Wilde (7 movies)
- Ólafur Darri Ólafsson (5 movies)
- Omar Sy (5 movies)
- Oliver Cooper (4 movies)
- Oliver Platt (4 movies)
- Omari Hardwick (4 movies)
- Otis Winston (4 movies)
- Obie Matthew (3 movies)
- Oded Fehr (3 movies)
- Odette Annable (3 movies)
- Oleg Taktarov (3 movies)
- Olek Krupa (3 movies)
- Olesya Rulin (3 movies)
- Olivia Colman (3 movies)
- Olivia Munn (3 movies)
- Olivia Williams (3 movies)
- Olivier Rabourdin (3 movies)
- Omar J. Dorsey (3 movies)
- Ophelia Lovibond (3 movies)
- Orion Lee (3 movies)
- Oscar Nunez (3 movies)
- Owen Burke (3 movies)
- O-Lan Jones (2 movies)
- Octavia Chavez-Richmond (2 movies)
- Oh Jung-se (2 movies)
- Ok Ja-yeon (2 movies)
- Ola Rapace (2 movies)
- Oleg Prudius (2 movies)
- Oliver Cotton (2 movies)
- Oliver Muirhead (2 movies)
- Oliver Simms (2 movies)
- Olivia d'Abo (2 movies)
- Olivia Jordan (2 movies)
- Olivia Rosewood (2 movies)
- Ollie Mitchell (2 movies)
- Omar Benson Miller (2 movies)
- Omar Berdouni (2 movies)
- Omar Diop (2 movies)
- Omar Ghonim (2 movies)
- Omar Metwally (2 movies)
- Omar Sharif (2 movies)
- Omid Djalili (2 movies)
- Ona Grauer (2 movies)
Actors − Letter O windboy2017-08-16T13:43:42+09:00