| Lopez, Massimo | Massimo Lopez | Actor | 1977 | 4 | |
| Lesker, Michael | Michael Lesker | Actor | 1977 | 1 | |
| Lockwood, Vic | Vic Lockwood | Lighting Designer | 1977 | 5 | |
| Liebeneiner, Johanna | Johanna Liebeneiner | Actor | 1977 | 5 | |
| Louys, Madeleine | Madeleine Louys | Costume Designer, Designer | 1977 | 2 | |
| Lieck, Peter | Peter Lieck | Actor | 1977 | 1 | |
| Lichtenthäler, Ute | Ute Lichtenthäler | Actor | 1977 | 1 | |
| Lawson, Lyndy | Lyndy Lawson | Actor | 1977 | 1 | |
| Lindinger, Johanna | Johanna Lindinger | Actor | 1977 | 1 | |
| Lohr, Rainer | Rainer Lohr | Actor | 1977 | 1 | |
| Lampson, David | David Lampson | Actor | 1977 | 1 | |
| Llopart, Gabriel | Gabriel Llopart | Actor | 1977 | 1 | |
| Labart, Lena | Lena Labart | Actor | 1977 – 1978 | 2 | |
| Lause, Hermann | Hermann Lause | Actor | 1977 – 1979 | 4 | |
| Lawler, Ray | Ray Lawler | Adaptation, Director | 1977 – 1980 | 2 | |
| Langfield, Angela | Angela Langfield | Director | 1977 – 1984 | 2 | |
| Linder, Antonia | Antonia Linder | Actor | 1977 – 2000 | 3 | |
| Lingard, John | John Lingard | Director, Translator | 1977 – 2000 | 5 | |
| Landertinger, Erika | Erika Landertinger | Costume Designer | 1977 – 2001 | 6 | |
| La Chesnais, P.G. | P.-G. La Chesnais | Translator | 1977 – 2002 | 2 | |
| Lohmann, Lars | Lars Lohmann | Actor | 1977 – 2002 | 11 | |
| Ladan, Tomislav | Tomislav Ladan | Translator | 1977 – 2010 | 3 | |
| Lang, Stephen | Stephen Lang | Actor | 1978 | 2 | |
| Lissner, Joanna | Joanna Lissner | Actor | 1978 | 1 | |
| Leśniewski, Janusz | Janusz Leśniewski | Actor | 1978 | 1 | |
| Langaas, Arne | Arne Langaas | Actor | 1978 | 2 | |
| Lunden, Brigit | Brigit Lunden | Actor | 1978 | 4 | |
| Lepre, Gianni | Gianni Lepre | Director | 1978 | 2 | |
| Lind, Beate | Beate Lind | Actor, Costume Designer | 1978 | 2 | |
| Lahn, Tore | Tore Lahn | Actor, Designer | 1978 | 2 | |
| Larsen, Bente Gro | Bente Gro Larsen | Actor | 1978 | 1 | |
| Lund, Marie | Marie Lund | Actor | 1978 | 1 | |
| Lynn, Heery | Heery Lynn | Director | 1978 | 1 | |
| Lomperi, Reijo | Reijo Lomperi | Actor | 1978 | 1 | |
| Laiho, Ami | Ami Laiho | Actor | 1978 | 1 | |
| Luukkonen, Pasi | Pasi Luukkonen | Actor | 1978 | 2 | |
| Lochner, Anita | Anita Lochner | Actor | 1978 | 3 | |
| Lawler, Pat | Pat Lawler | Actor | 1978 | 1 | |
| Lassen, Alf | Alf Lassen | Actor | 1978 | 3 | |
| Lie, Tore | Tore Lie | Actor | 1978 | 2 | |
| Lund, Petter | Petter Lund | Actor | 1978 | 2 | |
| Leahu , Virgil | Virgil Leahu | Actor | 1978 | 1 | |
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