| Janoušková, Eva | Eva Janoušková | Actor | 2004 | 1 | |
| Janáček, Zdeněk | Zdeněk Janáček | Dramaturg | 2008 – 2009 | 1 | |
| Jones, Dan | Dan Jones | Composer | 2004 – 2012 | 2 | |
| Jantschew, Sarah-Michelle | Sarah-Michelle Jantschew | Actor | 2004 – 2005 | 2 | |
| Jackenkroll, Michael | Michael Jackenkroll | Actor | 2004 | 1 | |
| Jelínková, Kristina | Kristina Jelínková | Actor, Adaptation | 2000 – 2009 | 3 | |
| Janečková, Petra | Petra Janečková | Actor | 2008 – 2009 | 2 | |
| Janoušková, Jindra | Jindra Janoušková | Actor | 2000 – 2009 | 3 | |
| Juusti, Aapo | Aapo Juusti | Actor | 2004 | 1 | |
| Jones, Morgan | Morgan Jones | Actor | 2004 | 1 | |
| Jeličová, Ivona | Ivona Jeličová | Dancer | 2007 – 2008 | 2 | |
| Jiménez, Ángel | Ángel Jiménez | Actor | 2004 | 2 | |
| Jiménez, Patricio | Patricio Jiménez | Lighting Designer | 2004 | 2 | |
| Jürgens, Hanna | Hanna Jürgens | Actor | 2004 – 2006 | 1 | |
| Jacobsen, Ellen | Ellen Jacobsen | Translator | 2004 | 1 | |
| Janků, Jiří | Jiří Janků | Dramaturg | 2007 – 2009 | 3 | |
| Janků, Veronika | Veronika Janků | Actor | 2007 – 2009 | 3 | |
| Javorský, Vladimír | Vladimír Javorský | Actor | 2006 | 1 | |
| Johns, Rosemary | Rosemary Johns | Director | 2004 | 2 | |
| Johansen, Noel | Noel Johansen | Actor | 2004 | 1 | |
| Jeker, Valentin | Valentin Jeker | Director | 2004 | 1 | |
| Jenkins, Gwendolyn | Gwendolyn Jenkins | Costume Designer | 2004 – 2006 | 1 | |
| John, Thies | Thies John | Actor | 2004 | 1 | |
| Jakobi, Dominika | Dominika Jakobi | Actor | 2004 | 1 | |
| Jíra, Vítek | Vítek Jíra | Composer | 2006 | 1 | |
| Jakubec, Pavol | Pavol Jakubec | Actor | 2006 | 1 | |
| Johnson, Aaron Krister | Aaron Krister Johnson | Composer, Sound Designer | 2004 – 2005 | 2 | |
| Jirák, Ota | Ota Jirák | Actor | 2005 – 2006 | 12 | |
| Jandová, Klára | Klára Jandová | Actor | 2001 | 1 | |
| Jasuja, Ayushmaan | Ayushmaan Jasuja | Actor | 2005 – 2006 | 2 | |
| Ježková, Zuzana | Zuzana Ježková | Costume Designer | 2000 | 1 | |
| Junco, Pascual | Pascual Junco | Actor | 2005 | 1 | |
| Jiménez, Ana | Ana Jiménez | Actor | 2005 | 1 | |
| Jurásek, Josef | Josef Jurásek | Actor | 2000 | 3 | |
| Jícha, Robert | Robert Jícha | Actor | 2000 | 3 | |
| Janský, Karel | Karel Janský | Actor | 2000 | 1 | |
| Jackuliak, Ján | Ján Jackuliak | Actor, Adaptation | 2000 | 7 | |
| Janžurová, Iva | Iva Janžurová | Actor | 1993 – 2000 | 2 | |
| Josifovski, Oliver | Oliver Josifovski | Musical Director | 2013 – 2015 | 3 | |
| Johanson, Robert, M. | Robert M. Johanson | Director | 2015 | 1 | |
| Jelénková, Yvona | Yvona Jelénková | Actor | 1989 | 1 | |
| Jelínková, Vlasta | Vlasta Jelínková | Actor | 1989 | 2 | |
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