| Idrizi, Besfort | Besfort Idrizi | Assistant Director | 2013 - 2015 | 3 | |
| Ikiki, Quentin | Quentin Ikiki | Actor | 2005 | 1 | |
| Ilczuk, Anna | Anna Ilczuk | Actor | 2005 - 2006 | 3 | |
| Iacov, Adrian | Adrian Iacov | Actor, Assistant Director | 2010 | 8 | |
| Ichimura, Masachika | Masachika Ichimura | Actor | 2005 | 1 | |
| Iblová, Anna | Anna Iblová | Actor | 1941 - 1943 | 2 | |
| Indira | Indira - | Costume Designer | 2001 | 1 | |
| Imrichová, Veronika | Veronika Imrichová | Dramaturg | 2011 | 1 | |
| Iwańska, Małgorzata | Małgorzata Iwańska | Actor | 2007 | 3 | |
| Idziak, Bolesław | Bolesław Idziak | Actor | 1959 | 1 | |
| Ionescu, Marius | Marius Ionescu | Actor | 1972 | 3 | |
| Ionescu, Irina | Irina Ionescu | Actor | 1957 | 1 | |
| Igorov, Ion | Ion Igorov | Actor | 1963 | 2 | |
| Ionescu, Doina | Doina Ionescu | Actor | 1963 | 1 | |
| Isitt, Kate | Kate Isitt | Actor | 2001 | 1 | |
| Irod, Constantin | Constantin Irod | Actor | 1963 | 1 | |
| Ionescu, Cicerone | Cicerone Ionescu | Actor | 1963 | 1 | |
| Ionescu, Şerban | Şerban Ionescu | Actor | 1977 | 4 | |
| Irimia, Cristian | Cristian Irimia | Actor | 1977 | 4 | |
| Iordănescu, Ştefan | Ştefan Iordănescu | Actor, Director | 1970 - 1998 | 6 | |
| Ionescu, Eugenia-Gina | Eugenia-Gina Ionescu | Assistant Director | 1985 | 2 | |
| Iacob, Cristian | Cristian Iacob | Actor | 1994 - 2004 | 3 | |
| Istodor, Claudiu | Claudiu Istodor | Actor | 1994 | 5 | |
| Ivanca, Elena | Elena Ivanca | Actor | 2009 | 1 | |
| Iorga, Silvius | Silvius Iorga | Actor | 2009 | 2 | |
| Iacovelli, John | John Iacovelli | Designer | 2000 - 2010 | 3 | |
| Islam Rubel, Shamimul | Shamimul Islam Rubel | Actor | 2006 | 3 | |
| Islam, Sheik Nasir | Sheik Nasir Islam | Actor | 2006 | 3 | |
| Impens, Els | Els Impens | Actor | 2006 | 4 | |
| Izambard, Nico | Nico Izambard | Actor | 2007 | 1 | |
| Imani, Jamal | Jamal Imani | Actor | 2007 | 1 | |
| Inge Cadurisch, Inge Cadurisch | Inge Cadurisch | Actor | 2007 | 1 | |
| Islam, Jahid | Jahid Islam | Actor | 2006 | 1 | |
| Islam, Mahfuzul | Mahfuzul Islam | Actor | 2006 | 1 | |
| Iiton, - | - Iiton | Actor | 2006 | 1 | |
| Islam, Sumee | Sumee Islam | Costume Designer | 2006 | 4 | |
| Islam, Nazrul | Nazrul Islam | Actor | 2006 | 1 | |
| Islam, Midul | Midul Islam | Actor | 2006 | 1 | |
| Islam, Aminul | Aminul Islam | Actor | 2006 | 1 | |
| Islam, Tarikul | Tarikul Islam | Actor | 2006 | 1 | |
| Islam, Rafiqul | Rafiqul Islam | Actor | 2006 | 1 | |
| Islam, Fakir Zahidul | Fakir Zahidul Islam | Actor | 2006 | 1 | |
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