| Otto, Wilhelm | Wilhelm Otto | Actor | 1889 - 1898 | 5 | |
| Ottolini, Piero | Piero Ottolini | Translator | 1905 - 1906 | 4 | |
| Ottomeyer, Hans Leonard | Hans Leonard Ottomeyer | Actor | 1878 | 1 | |
| Ottomeyer, J. L. | J. L. Ottomeyer | Actor | 1891 | 1 | |
| Otton, Steve | Steve Otton | Assistant Director | 1984 | 1 | |
| Ottosen, Carl | Carl Ottosen | Actor | 1960 | 1 | |
| Ottosen, Edith | Edith Ottosen | Actor | 1955 - 1967 | 4 | |
| Ottoson, Rune | Rune Ottoson | Actor | 1969 | 1 | |
| Ottosson, Annelie | Annelie Ottosson | Actor | 1993 | 2 | |
| Ottzenn, Paula | Paula Ottzenn | Actor | 1919 - 1936 | 10 | |
| Otupacca, Alessandro | Alessandro Otupacca | Actor | 2011 | 1 | |
| Otxoa, Iñaki | Iñaki Otxoa | Actor | 1987 | 1 | |
| Ou, Daisy | Daisy Ou | Actor | 2022 | 1 | |
| Oubram, Stanislav | Stanislav Oubram | Actor | 1969 - 2006 | 2 | |
| Ouchi, Satomi | Satomi Ouchi | Actor | 2010 | 1 | |
| Oudart, Gisèle | Gisèle Oudart | Actor | 1969 | 1 | |
| Oudet, Daniel | Daniel Oudet | Actor | 1939 | 1 | |
| Oudinotis, Alekos | Alekos Oudinotis | Actor | 1975 - 1985 | 5 | |
| Oudrey, Pierre | Pierre Oudrey | Actor | 1973 | 1 | |
| Ouedraogo, Gérard | Gérard Ouedraogo | Actor | 2002 | 2 | |
| Ouedraogo, Issa | Issa Ouedraogo | Actor | 2002 | 2 | |
| Ouedraogo, Léontine | Léontine Ouedraogo | Actor | 2002 | 2 | |
| Ouedraogo, Marceline | Marceline Ouedraogo | Actor | 1992 | 1 | |
| Ouellette, Jean-Sébastien | Jean-Sébastien Ouellette | Actor | 2009 - 2022 | 3 | |
| Ouellette, Joe | Joe Ouellette | Actor | 2004 | 1 | |
| Ouellette, Michael | Michael Ouellette | Actor | 2003 | 1 | |
| Oug, Linda | Linda Oug | Actor | 1980 | 1 | |
| Ouisem, Abdellaoui | Abdellaoui Ouisem | Actor | 2022 | 1 | |
| Oulianine, Nina | Nina Oulianine | Dancer | 1937 | 1 | |
| ouloupaki, Niki | Niki ouloupaki | Actor | 2002 | 1 | |
| Oura, Mizuki | Mizuki Oura | Actor | 2006 | 3 | |
| Ouředník, František | František Ouředník | Actor | 1920 | 1 | |
| Ourth, Georges | Georges Ourth | Actor, Director | 1978 - 1984 | 2 | |
| Oury, Gérard | Gérard Oury | Actor | 1954 | 1 | |
| Ousdal, Bodil | Bodil Ousdal | Choreographer | 1985 - 1991 | 6 | |
| Ousdal, Mads | Mads Ousdal | Actor | 1993 - 2020 | 21 | 3 |
| Ousdal, Sverre Anker | Sverre Anker Ousdal | Actor | 1983 - 2020 | 40 | |
| Ousey, Timmy | Timmy Ousey | Actor | 1971 | 1 | |
| Outhwaite, Walter | Walter Outhwaite | Actor | 1944 | 1 | |
| Outin, Régis | Régis Outin | Actor | 1928 - 1978 | 4 | |
| Outler, Walter | Walter Outler | Actor | 1928 | 2 | |
| Outram, J., F. | J. F. Outram | Actor | 1913 | 1 | |
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