| Insull, Sigrid | Sigrid Insull | Costume Designer | 1977 | 1 | |
| intendant, teatrets | teatrets intendant (teatrets intendant) | Director | 1920 | 1 | |
| Intercoiffeur, Jean | Jean Intercoiffeur | Mask Maker | 1997 | 1 | |
| Interne Teater, Studentersamfundets | Studentersamfundets Interne Teater (Studentersamfundets Interne Teater) | Adaptation | 1994 | 1 | |
| Intert, Arthur | Arthur Intert | Actor | 1973 | 1 | |
| Invernici, Felice | Felice Invernici | Actor | 1986 | 2 | |
| Inwenden, Franz | Franz Inwenden | Actor | 1955 | 1 | |
| Inwood, Joan | Joan Inwood | Actor | 1978 | 1 | |
| Inzko, Simone | Simone Inzko | Translator | 2002 | 2 | |
| Ioan Popov, Diana | Diana Ioan Popov | Designer | 1972 | 1 | |
| Ioan, Cristian | Cristian Ioan | Director | 2005 | 1 | 1 |
| Ioan, Raluca | Raluca Ioan | Composer | 2005 | 1 | |
| Ioannidis, Agis | Agis Ioannidis | Composer | 2003 | 1 | |
| Ioannidis, Simos | Simos Ioannidis | Actor | 1974 | 1 | |
| Ioannidou, Loula | Loula Ioannidou | Actor | 1961 - 1997 | 9 | |
| Ioannidou, Noni | Noni Ioannidou | Actor | 2007 - 2008 | 2 | |
| Ioannidou, Theano | Theano Ioannidou | Actor | 1955 | 1 | |
| Ioannidou, Zizi | Zizi Ioannidou | Actor | 1989 | 2 | |
| Ioannou, Dimitris | Dimitris Ioannou (Dimitris Ioannou) | Director | 2006 | 1 | |
| Ioannou, Odetti | Odetti Ioannou | Actor | 1991 - 2001 | 3 | |
| Ioannou, Styliana | Styliana Ioannou | Actor, Director | 2017 - 2018 | 4 | |
| Iobst, Anne | Anne Iobst | Actor | 1992 | 1 | 1 |
| Ioka, Kaoru | Kaoru Ioka | Actor | 2006 | 1 | |
| Ion, Livescu | Ion Livescu | Actor | 1920 - 1923 | 5 | |
| Ionaşcu, Silvia | Silvia Ionaşcu | Actor | 1939 - 1940 | 2 | |
| Ionescu Micu, Antonia | Antonia Ionescu Micu | Actor | 2016 | 3 | |
| Ionescu Mihail, Marieta | Marieta Ionescu Mihail | Choreographer | 1959 | 1 | |
| Ionescu-Galați, Ilarion | Ilarion Ionescu-Galați | Conductor | 2014 | 1 | |
| Ionescu-Gion, Gheorghe | Gheorghe Ionescu-Gion | Actor | 1955 - 1973 | 2 | |
| Ionescu-Potoroacă, A. | A. Ionescu-Potoroacă | Actor | 1927 | 1 | |
| Ionescu, C. | C. Ionescu | Actor | 1894 - 1901 | 3 | |
| Ionescu, Cicerone | Cicerone Ionescu | Actor | 1963 | 1 | |
| Ionescu, Doina | Doina Ionescu | Actor | 1963 | 1 | |
| Ionescu, Eugenia-Gina | Eugenia-Gina Ionescu | Assistant Director | 1985 | 2 | |
| Ionescu, Irina | Irina Ionescu | Actor | 1957 | 1 | |
| Ionescu, Lucian | Lucian Ionescu | Musical Director | 1955 - 1966 | 3 | |
| Ionescu, Marius | Marius Ionescu | Actor | 1972 | 3 | |
| Ionescu, Nicolae | Nicolae Ionescu | Actor | 2016 - 2018 | 6 | |
| Ionescu, Nina | Nina Ionescu | Actor | 2003 | 1 | |
| Ionescu, Răzvan | Răzvan Ionescu | Actor | 1989 | 1 | |
| Ionescu, Şerban | Şerban Ionescu | Actor | 1977 | 4 | |
| Ionescu, Ștefan | Ștefan Ionescu | Actor | 2009 - 2015 | 3 | |
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