| Name | Functions | Event Dates | Events | Resources  | ||
|---|---|---|---|---|---|---|
| Dimitris Iatropoulos | Musical Director, Sound Designer | 1994 - 1999 | 3 | |||
| Róbert Ilyés | Actor | 1996 - 2005 | 3 | |||
| Varga Izabella | Actor | 1996 | 1 | |||
| Kathrin Irion | Actor | 1996 | 1 | |||
| Silvia Iannazzo | Actor | 1995 - 1996 | 12 | |||
| Syed Mohidul Islam | Actor | 1996 | 1 | |||
| Ewa Isajewicz-Telega | Actor | 1997 | 1 | |||
| Koji Ichise | Actor | 1996 | 1 | |||
| Evelyne Istria | Actor | 1996 - 1997 | 3 | |||
| Yedwart Ingey | Actor | 1996 - 1997 | 18 | |||
| Shinnichiro Ikebe | Composer | 1995 | 1 | |||
| Jenő Ivánfy | Actor | 1890 - 1891 | 3 | |||
| Stanisław Igar | Actor, Director | 1957 - 1975 | 2 | |||
| Jean Intercoiffeur | Mask Maker | 1997 | 1 | |||
| Eli Iranzo | Actor | 2014 | 1 | |||
| Minako Ide | Actor | 1997 | 1 | |||
| Dobrila Ilic | Actor | 1969 | 1 | |||
| Tomáš Indra | Actor | 1997 | 4 | |||
| Wolfgang Immenhausen | Actor | 1968 | 1 | |||
| Loula Ioannidou | Actor | 1961 - 1997 | 9 | |||
| Takao Ito | Actor | 1968 | 1 | |||
| Kazuko Imai | Actor | 1968 | 1 | |||
| Takako Iwakura | Actor | 1968 | 1 | |||
| Yasuhiro Ishii | Designer | 1967 | 1 | |||
| Paul Ingvoldstad | Actor | 1967 | 1 | |||
| Robert Ingham | Actor | 1967 | 3 | |||
| Birgitta Isberg | Actor | 1967 | 1 | |||
| Saburo Izumino | Director | 1966 | 1 | |||
| Anaid Iplicjian | Actor | 1956 - 1966 | 2 | |||
| Janko Ibler | Translator | 1896 - 1897 | 3 | |||
| Eileen Itkowitz | Actor | 1965 | 1 | |||
| Ayumi Iwata | Actor | 1997 | 1 | |||
| Zoltán Imre | Dramaturg | 2005 | 2 | |||
| Naoyuki Iwata | Sound Designer | 2002 | 1 | |||
| Simone Inzko | Translator | 2002 | 2 | |||
| Rosanne Ifould | Actor | 2002 | 1 | |||
| Tomie Ishizuka | Actor | 2002 | 1 | |||
| Lepomir Ivković | Actor | 2002 | 2 | |||
| - Ives | Composer | 2002 | 1 | |||
| Julia Irmscher | Actor | 1989 | 1 | |||
| Amy Irving | Actor | 2002 | 1 | |||
| Konstantin Ivanov | Actor | 2002 - 2004 | 2 | |||