| Ibkheet, Abdullah | Abdullah Ibkheet | Actor | 2008 | 3 | |
| Ivarson, Didi | Didi Ivarson | Actor | 1917 - 1918 | 3 | |
| Ichikawa, Ennosuke | Ennosuke Ichikawa | Actor, Director | 1913 - 1922 | 3 | |
| Iversen, Rolf | Rolf Iversen | Actor | 1979 - 1980 | 3 | |
| Immisch, Hans | Hans Immisch | Actor | 1923 - 1933 | 3 | |
| Iftimie, Nicu | Nicu Iftimie | Composer | 2009 - 2015 | 3 | |
| Ionescu, Ștefan | Ștefan Ionescu | Actor | 2009 - 2015 | 3 | |
| Illig, Nancy | Nancy Illig | Actor | 1954 - 1986 | 3 | |
| Ioannou, Odetti | Odetti Ioannou | Actor | 1991 - 2001 | 3 | |
| Iatropoulos, Dimitris | Dimitris Iatropoulos | Musical Director, Sound Designer | 1994 - 1999 | 3 | |
| Ilyés, Róbert | Róbert Ilyés | Actor | 1996 - 2005 | 3 | |
| Istria, Evelyne | Evelyne Istria | Actor | 1996 - 1997 | 3 | |
| Ivánfy, Jenő | Jenő Ivánfy | Actor | 1890 - 1891 | 3 | |
| Ingham, Robert | Robert Ingham | Actor | 1967 | 3 | |
| Ibler, Janko | Janko Ibler | Translator | 1896 - 1897 | 3 | |
| Ignat, Diana | Diana Ignat | Actor, Dancer | 2005 | 3 | |
| Iacob, Gabriela | Gabriela Iacob | Actor, Dancer | 2005 | 3 | |
| Idrizi, Besfort | Besfort Idrizi | Assistant Director | 2013 - 2015 | 3 | |
| Ilczuk, Anna | Anna Ilczuk | Actor | 2005 - 2006 | 3 | |
| Iwańska, Małgorzata | Małgorzata Iwańska | Actor | 2007 | 3 | |
| Ionescu, Marius | Marius Ionescu | Actor | 1972 | 3 | |
| Iacob, Cristian | Cristian Iacob | Actor | 1994 - 2004 | 3 | |
| 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 | |
| Inokuma, Tsunekazu | Tsunekazu Inokuma | Actor | 2006 | 3 | |
| Inger, Manfred | Manfred Inger | Actor | 1960 - 1964 | 3 | |
| Iparraguirre, Iván | Iván Iparraguirre | Actor, Adaptation, Director | 2006 | 3 | 1 |
| Im, Kang Cheong | Kang Cheong Im | Actor | 2009 - 2012 | 3 | |
| Insel, Diana | Diana Insel | Dramaturg | 2009 - 2013 | 3 | |
| Irle, Eddie | Eddie Irle | Actor | 2016 | 3 | |
| Ivo, Barišič | Barišič Ivo | Actor | 2010 - 2012 | 3 | 1 |
| Innes, George | George Innes | Actor | 1964 - 1965 | 3 | |
| Ionescu, C. | C. Ionescu | Actor | 1894 - 1901 | 3 | |
| Ionescu, Lucian | Lucian Ionescu | Musical Director | 1955 - 1966 | 3 | |
| Ifrim, Nicolae | Nicolae Ifrim | Actor | 1955 - 1976 | 3 | |
| Ivo, L. | L. Ivo | Designer | 1956 - 1957 | 3 | |
| Iliev, Jana | Jana Iliev | Actor | 1998 - 2000 | 3 | |
| Ihalainen, Marjukka | Marjukka Ihalainen | Actor | 1998 | 3 | |
| Iivanainen, Hilkka-Liisa | Hilkka-Liisa Iivanainen | Director, Dramaturg, Sound Designer | 2012 | 3 | |
| Ionescu Micu, Antonia | Antonia Ionescu Micu | Actor | 2016 | 3 | |
| Ives, Harry | Harry Ives | Actor | 1964 - 1969 | 3 | |
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