| James, Jeff | Jeff James | Assistant Director | 2017 - 2018 | 26 | |
| Joan Santacana | Joan Santacana | Actor, Director | 1913 - 1915 | 26 | |
| Johannessen, Birgit | Birgit Johannessen | Mask Maker | 1984 - 1985 | 27 | |
| Jonsson, Per, A. | Per A. Jonsson | Costume Designer, Designer | 1978 - 1996 | 27 | |
| James, Louis | Louis James (Louis James) | Actor, Director | 1908 - 1909 | 28 | |
| Johannesen, Nils Jakob | Nils Jakob Johannesen (Nils Jakob Johannesen) | Actor, Dancer | 2001 - 2006 | 28 | 1 |
| Janse, Herbert | Herbert Janse (Herbert Janse) | Designer | 1997 - 2003 | 30 | |
| Julin, Yngvar | Yngvar Julin (Yngvar Julin) | Costume Designer, Designer | 2006 - 2008 | 30 | 1 |
| Juell, Johanne Regine | Johanne Regine Juell (Johanne Regine Juell) | Actor | 1867 - 1891 | 31 | 2 |
| Jørgensen, Joakim Dan | Joakim Dan Jørgensen (Joakim Dan Jørgensen) | Actor | 2003 - 2009 | 31 | |
| Juell, Mathias | Mathias Juell (Mathias Juell) | Actor | 1861 - 1889 | 32 | 1 |
| Jarvis, Christopher | Christopher Jarvis | Actor | 2007 - 2008 | 32 | |
| Jørgensen, Ingrid | Ingrid Jørgensen (Ingrid Jørgensen) | Actor | 1992 - 2018 | 33 | 1 |
| James, Malcolm | Malcolm James | Actor | 1993 - 2008 | 34 | |
| Johnson, Nils | Nils Johnson (Nils Johnson) | Actor | 1990 - 2020 | 35 | 5 |
| Josephson, Ludvig | Ludvig Josephson (Ludvig Josephson) | Director | 1873 - 1895 | 35 | 2 |
| Johansson, Per, Texas | Per Texas Johansson | Musician | 2020 | 36 | |
| Johannessen, Trine Falch | Trine Falch Johannessen (Trine Falch Johannessen) | Actor | 1990 - 1999 | 37 | |
| Jordal, Helge | Helge Jordal (Helge Jordal) | Actor | 1986 - 2022 | 37 | 1 |
| Jan Eirik Svanø | Jan Eirik Svanø | Actor | 1978 | 38 | |
| Jondal, Pia | Pia Jondal | Actor | 2000 - 2002 | 39 | 1 |
| Jacobsen, Helvig | Helvig Jacobsen (Helvig Jacobsen) | Actor | 1887 - 1915 | 41 | |
| Johannessen, Ola B. | Ola B. Johannessen | Actor, Adaptation, Director, Translator | 1962 - 2009 | 43 | |
| Johansson, Stefan | Stefan Johansson | Composer | 2014 - 2015 | 44 | 1 |
| Johansson, Douglas | Douglas Johansson (Douglas Johansson) | Actor | 1989 - 2007 | 45 | 1 |
| Jørgensen, Øyvind | Øyvind Jørgensen (Øyvind Jørgensen) | Adaptation, Choreographer, Director | 2001 - 2006 | 48 | 1 |
| Jongeling, Myranda | Myranda Jongeling | Actor | 2003 - 2008 | 48 | |
| Johannesen, Sigvald | Sigvald Johannesen (Sigvald Johannesen) | Actor | 1909 | 49 | 1 |
| Johannessen, Berent | Berent Johannessen (Berent Johannessen) | Actor | 1877 - 1903 | 51 | 1 |
| Joyce, Angela | Angela Joyce | Mask Maker | 1997 - 2000 | 52 | |
| Jerndorff, Peter | Peter Jerndorff (Peter Jerndorff) | Actor | 1872 - 1921 | 57 | 2 |
| Jansen, Per | Per Jansen (Per Jansen) | Actor | 1969 - 2004 | 58 | 1 |
| Jacobsen, Ronny P. | Ronny P. Jacobsen | Actor | 2000 - 2006 | 62 | 1 |
| Jørgensrud, John Emil | John Emil Jørgensrud | Actor | 2015 - 2022 | 64 | 1 |
| Jynge, Gjertrud | Gjertrud Jynge (Gjertrud Jynge) | Actor | 1992 - 2017 | 66 | 2 |
| Jeßner, Leopold | Leopold Jeßner (Leopold Jeßner) | Actor, Director | 1901 - 1931 | 66 | |
| Jørstad, Frank | Frank Jørstad (Frank Jørstad) | Actor | 2001 - 2008 | 67 | 3 |
| Johnson, Guri | Guri Johnson (Guri Johnson) | Actor | 1994 - 2022 | 68 | 2 |
| Jacobsen, Mette | Mette Jacobsen (Mette Jacobsen) | Costume Designer, Designer | 1997 - 2013 | 76 | 1 |
| Johansen, Peder Holm | Peder Holm Johansen | Actor | 2000 - 2004 | 77 | 1 |
| Jessua, Frédéric | Frédéric Jessua | Actor | 2000 - 2004 | 78 | |
| Jacobsen, Inger | Inger Jacobsen (Inger Jacobsen) | Actor | 1983 - 1990 | 101 | 1 |
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