| Idali, Joseph, | Joseph Idali | Actor | 1895 - 1898 | 2 | |
| Irmen, Garda, | Garda Irmen | Actor | 1898 | 3 | |
| Illing, Meta, | Meta Illing | Actor | 1893 - 1899 | 2 | |
| Inemann, Rudolf, | Rudolf Inemann | Director | 1899 | 1 | |
| Illing, Vilma, | Vilma Illing | Actor | 1900 | 4 | |
| intendant, teatrets, | teatrets intendant | Director | 1920 | 1 | |
| Indra, Ferdinand, | Ferdinand Indra | Actor | 1902 | 1 | |
| Illiger, Hans, | Hans Illiger | Actor | 1899 - 1933 | 9 | |
| Ingo-Brandt, Alex, | Alex Ingo-Brandt | Actor | 1910 | 2 | |
| Ingenohl, Oskar, | Oskar Ingenohl | Actor | 1911 - 1919 | 15 | |
| Ilm, Grete, | Grete Ilm | Actor | 1914 | 3 | |
| Imme, L., | L. Imme | Actor | 1918 | 1 | |
| Iltz, Walter, | Walter Iltz | Actor | 1920 | 1 | |
| Iteh m. fl., Heinz, | Heinz Iteh m. fl. | Actor | 1921 | 1 | |
| Ihle, Peter, | Peter Ihle | Actor | 1921 | 2 | |
| Islin, Gustl, | Gustl Islin | Actor | 1924 | 1 | |
| Ilse, Asta, | Asta Ilse | Actor | 1931 | 1 | |
| Iblacker, Edmund, | Edmund Iblacker | Actor | 1932 | 2 | |
| Itter, Käthe, | Käthe Itter | Actor | 1932 | 1 | |
| Illiger, Astrid, | Astrid Illiger | Actor | 1933 | 4 | |
| Ibsen-Ausgabe, Übersetzung der großen deutschen, | Übersetzung der großen deutschen Ibsen-Ausgabe | Translator | 1934 | 1 | |
| Imkamp, Anton, | Anton Imkamp | Actor | 1940 | 1 | |
| in der Au, Ottomar, | Ottomar in der Au | Actor, Director | 1946 | 2 | |
| in der Au, Majo, | Majo in der Au | Actor | 1946 | 2 | |
| Isterheil, Heinz, | Heinz Isterheil | Actor | 1947 - 1948 | 1 | |
| Inskaja, V. O., | V. O. Inskaja (V. O. Inskaja) | Actor | 1900 | 2 | |
| Ignatieva, Vera, | Vera Ignatieva | Actor | 1901 | 3 | |
| Ising, -, | - Ising | Actor | 1901 | 1 | |
| Ivánfi, -, | - Ivánfi | Actor | 1901 | 1 | |
| Isaïa, Smaragda, | Smaragda Isaïa | Actor | 1902 | 1 | |
| Ikonomova, Manja, | Manja Ikonomova | Actor | 1902 | 4 | |
| Indriðadóttir, Lára, | Lára Indriðadóttir | Actor | 1903 | 2 | |
| Indriðadóttir, Ingibjörg, | Ingibjörg Indriðadóttir | Actor | 1903 | 1 | |
| Ionidou, Korinna, | Korinna Ionidou | Actor | 1903 - 1904 | 4 | |
| Isaïas, Xenofon, | Xenofon Isaïas | Actor | 1903 | 1 | |
| Innemann, Rudolf, | Rudolf Innemann | Actor | 1904 | 4 | |
| Indarte, Pérez, | Pérez Indarte | Actor | 1906 | 2 | |
| Iakovidis, Michaïl, | Michaïl Iakovidis | Actor | 1908 - 1935 | 6 | |
| Italiaander, -, | - Italiaander | Actor | 1908 | 1 | |
| Ichikawa, Sadanji, | Sadanji Ichikawa | Actor | 1909 | 1 | |
| Ichikawa, Danshi, | Danshi Ichikawa | Actor | 1909 | 1 | |
| Ichikawa, Enjaku, | Enjaku Ichikawa | Actor | 1909 | 1 | |
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