| I, Schiff | Schiff I | Actor | 1894 | 1 | |
| I. Elísdóttir, Filippía | Filippía I. Elísdóttir | Costume Designer | 2001 - 2011 | 4 | |
| Iaccarino, Riccardo | Riccardo Iaccarino | Actor | 2016 | 1 | |
| Iacob, Cristian | Cristian Iacob | Actor | 1994 - 2004 | 3 | |
| Iacob, Gabriela | Gabriela Iacob | Actor, Dancer | 2005 | 3 | |
| Iacoban, Radu | Radu Iacoban | Actor | 2011 | 1 | |
| Iacono, Christoph | Christoph Iacono | Composer | 2009 | 1 | |
| Iacov, Adrian | Adrian Iacov | Actor, Assistant Director | 2010 | 8 | |
| Iacovelli, John | John Iacovelli | Designer | 2000 - 2010 | 3 | |
| Iacuzio, Luigi | Luigi Iacuzio | Actor | 1999 - 2001 | 10 | |
| Iakovidis, Michaïl | Michaïl Iakovidis | Actor | 1908 - 1935 | 6 | |
| Iakovidou, Aspasia | Aspasia Iakovidou | Actor | 1909 | 1 | |
| Iancu, Geta | Geta Iancu | Actor | 1980 | 1 | |
| Iancu, Lucian | Lucian Iancu | Actor | 1966 | 1 | |
| Ianculescu, Dinu | Dinu Ianculescu | Actor | 1989 - 1992 | 2 | |
| Iandolo, Roberta | Roberta Iandolo | Actor | 2022 | 1 | |
| Ianke, Bjørn | Bjørn Ianke | Musician | 1990 | 1 | |
| Iannazzo, Silvia | Silvia Iannazzo | Actor | 1995 - 1996 | 12 | |
| Iannetta, Gaetano | Gaetano Iannetta | Actor, Musical Director | 2017 | 8 | |
| Iannone, Valentina | Valentina Iannone | Actor | 2013 - 2014 | 3 | |
| Iașchevici, Sabrina | Sabrina Iașchevici | Actor | 2017 | 1 | |
| Iasi, Francesca | Francesca Iasi | Actor | 2024 | 1 | |
| Iatridou, Stasa | Stasa Iatridou | Actor | 1939 - 1951 | 8 | |
| Iatropoulos, Dimitris | Dimitris Iatropoulos | Musical Director, Sound Designer | 1994 - 1999 | 3 | |
| Iba, Shigeaki | Shigeaki Iba | Sound Designer | 2000 - 2007 | 2 | |
| Ibanez, Isabella | Isabella Ibanez | Actor | 2013 | 1 | |
| Ibáñez, Javier | Javier Ibáñez | Actor | 1987 | 1 | |
| Ibáñez, José González | José González Ibáñez | Actor | 1982 | 2 | |
| Ibarra, Antonio | Antonio Ibarra | Actor | 1943 | 1 | |
| Ibarra, Pedro, López | Pedro López Ibarra | Actor | 1992 | 1 | |
| Ibberson, Juliet | Juliet Ibberson | Actor | 2023 | 1 | |
| Ibbotson, Colin | Colin Ibbotson | Actor | 2008 | 1 | |
| Ibbotson, Matthew | Matthew Ibbotson | Actor | 2020 | 1 | |
| Ibkheet, Abdullah | Abdullah Ibkheet | Actor | 2008 | 3 | |
| Iblacker, Edmund | Edmund Iblacker | Actor | 1932 | 2 | |
| Ibler, Janko | Janko Ibler | Translator | 1896 - 1897 | 3 | |
| Iblová, Anna | Anna Iblová | Actor | 1941 - 1943 | 2 | |
| Ibochouba, L. | L. Ibochouba | Lighting Designer | 2012 | 1 | |
| Iborra, Isabel | Isabel Iborra | Actor | 2024 | 1 | |
| Ibrahim, Burhanedin | Burhanedin Ibrahim (Бурханедин Ибрахим) | Actor | 2013 | 1 | |
| Ibrahim, George | George Ibrahim | Adaptation, Director | 2008 | 12 | |
| Ibrahim, Nesma | Nesma Ibrahim | Actor | 2006 | 5 | |
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