| Ornstein, Brigitte | Brigitte Ornstein | Actor | 1968 | 1 | |
| Oyamada, Munenori | Munenori Oyamada | Actor | 1968 | 1 | |
| Osanai, Minako | Minako Osanai | Actor | 1968 | 1 | |
| Oravisto, Matti | Matti Oravisto | Actor | 1968 | 1 | |
| Ovanez Doroşenco, Anca | Anca Ovanez Doroşenco | Director | 1968 | 1 | |
| O'Wisiedo, Mayrata | Mayrata O'Wisiedo | Actor | 1968 | 1 | |
| Orjas, José | José Orjas | Actor | 1968 | 1 | |
| Ostr, Alois | Alois Ostr | Actor | 1967 | 1 | |
| Ogawa, Hisao | Hisao Ogawa | Lighting Designer | 1967 | 1 | |
| Owens, Charlotte | Charlotte Owens | Actor | 1967 | 1 | |
| Okazaki, Tomomi | Tomomi Okazaki | Actor | 1967 | 1 | |
| Otto, Anneliese | Anneliese Otto | Actor | 1966 | 1 | |
| Ott, Ludwig | Ludwig Ott | Actor | 1966 | 1 | |
| O'Connell, Hans | Hans O'Connell | Actor | 1966 | 1 | |
| Oglesby, Aaron | Aaron Oglesby | Actor | 1966 | 1 | |
| Oeser, Wolfgang | Wolfgang Oeser | Actor | 1966 | 1 | |
| Ott, Isabella | Isabella Ott | Actor | 1966 | 1 | |
| Olson, James | James Olson | Actor | 1966 | 1 | |
| Orlac, Stephan | Stephan Orlac | Actor | 1966 | 2 | |
| Oikonomidou, Miranta | Miranta Oikonomidou | Actor | 1965 - 1994 | 4 | |
| Orhon, Coşkun | Coşkun Orhon | Actor | 1965 - 1971 | 2 | |
| Ostermayer, Christine | Christine Ostermayer | Actor | 1965 - 1969 | 3 | |
| Opřátko, Jiří | Jiří Opřátko | Actor | 1965 | 1 | |
| Owens, James, D. | James D. Owens | Actor | 1965 | 1 | |
| Orley, Ray | Ray Orley | Actor | 1965 | 1 | |
| Ožana, Drahomír | Drahomír Ožana | Actor | 1965 | 1 | |
| Orr, Connie | Connie Orr | Actor | 1965 | 1 | |
| Owe, Baard | Baard Owe | Actor | 1964 - 2007 | 5 | |
| O'Brien, Timothy | Timothy O'Brien | Costume Designer, Designer | 1964 - 1996 | 12 | |
| Ogawa, Toshiro | Toshiro Ogawa | Lighting Designer | 1964 - 1981 | 2 | |
| Ozolins, Miervaldis | Miervaldis Ozolins | Actor | 1964 - 1975 | 2 | |
| Oikonomidou, S. | S. Oikonomidou | Actor | 1964 | 1 | |
| Orth, Walther | Walther Orth | Actor | 1964 | 1 | |
| Odqvist, Svante | Svante Odqvist | Actor | 1964 | 1 | |
| O'Sullivan, Pat | Pat O'Sullivan | Lighting Designer | 1964 | 1 | |
| Overton, Marcus | Marcus Overton | Actor | 1964 | 1 | |
| Olsson, Erik | Erik Olsson | Actor | 1964 | 1 | |
| Ochoa, Diana | Diana Ochoa | Actor | 1964 | 1 | |
| Orlowicz, Tadeusz | Tadeusz Orlowicz | Designer | 1964 | 1 | |
| Ohland, Hans | Hans Ohland | Costume Designer, Designer | 1963 - 1981 | 4 | |
| Orsini, Umberto | Umberto Orsini | Actor | 1963 - 1970 | 2 | |
| O'Malley, Flynn | Flynn O'Malley | Actor | 1963 | 1 | |
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