| Name | Functions | Event Dates | Events  | Resources | ||
|---|---|---|---|---|---|---|
| Solrun Toft Iversen | Dramaturg | 2011 - 2014 | 2 | |||
| Mihailo Isajlović | Director | 1921 - 1923 | 2 | |||
| Kazuo Iwamura | Lighting Designer | 1924 - 1925 | 2 | |||
| Jørn Me Iin | Lighting Designer | 2000 | 2 | |||
| Bernadette Iglich | Dancer | 1990 | 2 | |||
| Pavel Ivanovski | Director | 1911 - 1926 | 2 | |||
| Rolf Idler | Actor | 1975 - 1987 | 2 | |||
| Vera Irrgang | Actor | 1972 - 2003 | 2 | 1 | ||
| Axel Illum | Actor | 1917 | 2 | |||
| Elena Ivanova | Costume Designer, Designer | 1991 | 2 | |||
| Marko Ivanovič | Composer | 2004 - 2012 | 2 | |||
| Szőke István | Choreographer | 2008 | 2 | |||
| Søren Iversen | Director | 1988 - 1993 | 2 | 1 | ||
| Norihiro Inoue | Actor | 1990 - 1997 | 2 | |||
| Trine Iversen | Actor, Lighting Designer | 1988 | 2 | |||
| Dinu Ianculescu | Actor | 1989 - 1992 | 2 | |||
| José González Ibáñez | Actor | 1982 | 2 | |||
| Zizi Ioannidou | Actor | 1989 | 2 | |||
| Irene Inescort | Actor | 1973 - 1982 | 2 | |||
| George Irving | Actor | 1980 - 2009 | 2 | |||
| Tea Ista | Actor | 1973 - 1980 | 2 | 1 | ||
| Yasuko Ikemura | Director, Translator | 1980 | 2 | |||
| Stanisław Igar | Actor, Director | 1957 - 1975 | 2 | |||
| Anaid Iplicjian | Actor | 1956 - 1966 | 2 | |||
| Zoltán Imre | Dramaturg | 2005 | 2 | |||
| Simone Inzko | Translator | 2002 | 2 | |||
| Lepomir Ivković | Actor | 2002 | 2 | |||
| Konstantin Ivanov | Actor | 2002 - 2004 | 2 | |||
| Genji Ito | Composer, Sound Designer | 1997 | 2 | |||
| Akira Ito | Director, Sound Designer | 1997 | 2 | |||
| Andrea Irvine | Actor | 2003 - 2008 | 2 | 1 | ||
| Tomáš Impseil | Actor | 2011 | 2 | |||
| Anna Ipat'eva | Costume Designer | 2003 - 2005 | 2 | |||
| Derrick Ivey | Actor, Designer | 2003 - 2006 | 2 | 1 | ||
| Andrea Irwin | Actor | 2004 | 2 | |||
| Garbiñe Insausti | Actor | 2004 | 2 | |||
| Nick Insley | Lighting Designer | 2004 - 2023 | 2 | |||
| Irini Inglesi | Actor | 2004 - 2005 | 2 | |||
| Livia Iorga | Actor | 2005 | 2 | |||
| Anna Iblová | Actor | 1941 - 1943 | 2 | |||
| Ion Igorov | Actor | 1963 | 2 | |||
| Eugenia-Gina Ionescu | Assistant Director | 1985 | 2 | |||