| Janeček, Miroslav | Miroslav Janeček | Actor, Director | 1955 - 1962 | 2 | 1 |
| Järegård, Ernst-Hugo | Ernst-Hugo Järegård | Actor | 1955 - 1973 | 6 | 1 |
| Johnsen, Erna | Erna Johnsen | Sound Designer | 1955 - 2006 | 2 | |
| Johannesen-Hellum, Bjarne | Bjarne Johannesen-Hellum | Sound Designer | 1955 - 2006 | 2 | |
| Johnson, Maj-Britt | Maj-Britt Johnson | Actor | 1956 | 1 | |
| Jary, Friedl | Friedl Jary | Actor | 1956 | 1 | |
| James, Colin | Colin James | Lighting Designer | 1956 | 1 | |
| Jun, Li | Li Jun | Actor | 1956 | 1 | |
| Jedlitschka, Hans | Hans Jedlitschka | Actor | 1956 | 1 | |
| Jeter, Jimmy | Jimmy Jeter | Lighting Designer, Sound Designer | 1956 | 2 | |
| Jochman, Josef | Josef Jochman | Designer | 1956 | 1 | |
| James, Dick | Dick James | Actor | 1956 | 1 | |
| Joyce, Janis | Janis Joyce | Actor | 1956 | 1 | |
| Jokovic, Zarko | Zarko Jokovic | Actor | 1956 | 1 | |
| Jensen, Anton | Anton Jensen | Designer | 1956 | 1 | |
| Jans, Erik | Erik Jans | Actor | 1956 | 1 | |
| Janhunen, Armas | Armas Janhunen | Actor | 1956 | 1 | |
| Jovanovic, Tomislav | Tomislav Jovanovic | Actor | 1956 - 1978 | 2 | |
| Johansen, Svend | Svend Johansen | Actor | 1956 - 2003 | 9 | |
| Jaszkowski, Stanisław | Stanisław Jaszkowski | Actor | 1957 | 1 | |
| Jirousková-Rokosová, Eva | Eva Jirousková-Rokosová | Actor | 1957 | 1 | |
| Johnson, Anne | Anne Johnson | Costume Designer | 1957 | 1 | |
| Jørgensen, Hanne Winther | Hanne Winther Jørgensen (Winther Jørgensen, Hanne) | Actor | 1957 | 1 | |
| Johanson, Greta | Greta Johanson | Costume Designer | 1957 | 1 | |
| Jinnette, Bettina | Bettina Jinnette | Actor | 1957 | 1 | |
| Jarman, Judith | Judith Jarman | Actor | 1957 | 1 | |
| Jarman, Joan | Joan Jarman | Actor | 1957 | 1 | |
| Jones, Bill, Tom | Bill Tom Jones | Dancer | 1957 | 1 | |
| Jordan, Robert | Robert Jordan | Actor | 1957 | 1 | |
| Jörnfalk, Åke | Åke Jörnfalk | Actor | 1957 - 1984 | 3 | 1 |
| Jaśkiewicz, Stanisław | Stanisław Jaśkiewicz | Actor | 1958 | 1 | |
| Josch, Bianca | Bianca Josch | Actor | 1958 | 1 | |
| Jankowski, Zbysław | Zbysław Jankowski | Actor | 1958 | 1 | |
| Jakl, Jan | Jan Jakl | Actor | 1958 | 1 | 1 |
| Jarrett, Bella | Bella Jarrett | Actor | 1958 | 1 | 1 |
| Juster, Leif | Leif Juster | Actor | 1958 | 1 | 1 |
| Jones, Lloyd | Lloyd Jones | Actor | 1958 | 1 | |
| Johnson, Jere, L. | Jere L. Johnson | Actor | 1958 | 1 | |
| James, Norman | Norman James | Designer | 1958 | 1 | |
| Josephson, Erland | Erland Josephson | Actor | 1958 - 2004 | 15 | 1 |
| Jacobsen, Astri | Astri Jacobsen | Actor | 1959 | 1 | 1 |
| Johannesson, Eyun | Eyun Johannesson | Actor | 1959 | 1 | |
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