| Brager, Øystein Ulsberg | Øystein Ulsberg Brager | Director | 2016 | 9 | |
| Bell, Joan, Kuder | Joan Kuder Bell | Director | 2008 | 1 | |
| Beukering, Ad | Ad Beukering | Director | 2008 | 1 | |
| Brecht, Ulrich | Ulrich Brecht | Director | 1955 | 1 | |
| Brehm, Wolfgang | Wolfgang Brehm | Director | 1993 | 1 | |
| Bennewitz, Fritz | Fritz Bennewitz | Director | 1970 | 1 | |
| Brier, Claudia | Claudia Brier | Director | 2009 | 1 | |
| Bares, Karin | Karin Bares | Director | 2009 | 1 | 1 |
| Buddeberg, Alice | Alice Buddeberg | Director | 2009 - 2010 | 4 | |
| Björkqvist, Marcus | Marcus Björkqvist | Director | 2009 | 1 | |
| Bravo, Bruno | Bruno Bravo | Director | 2009 | 2 | |
| Brison, Elvire | Elvire Brison | Director | 2008 | 1 | |
| Bennett, Genevieve | Genevieve Bennett | Director | 2010 | 1 | |
| Brainin, Risa | Risa Brainin | Director | 2010 | 1 | 1 |
| Brandis, Jasper | Jasper Brandis | Director | 2010 | 2 | |
| Baldwin, Craig | Craig Baldwin | Director | 2009 | 1 | |
| Bradford, Blake | Blake Bradford | Director | 2011 | 1 | 1 |
| Braun, Manuel | Manuel Braun | Director | 2016 | 1 | |
| Berk, Ingo | Ingo Berk | Director | 2011 - 2016 | 2 | |
| Bauer, Claudia | Claudia Bauer | Director | 2011 | 2 | |
| Birtwistle, Michael | Michael Birtwistle | Director | 1964 | 1 | 1 |
| Baron, Dedi | Dedi Baron | Director | 2013 | 1 | |
| Baqué, Claude | Claude Baqué | Director | 2012 | 11 | |
| Băleanu, Petre Sava | Petre Sava Băleanu | Director | 1965 - 1974 | 4 | |
| Baumeister, Eva-Maria | Eva-Maria Baumeister | Director | 2013 | 1 | |
| Byl, Lisa | Lisa Byl | Director | 2014 | 1 | |
| Berès, Julie | Julie Berès | Director | 2015 | 15 | |
| Brandon, James, R. | James R. Brandon | Director | 1964 | 1 | |
| Barnhill, James, O. | James O. Barnhill | Director | 1963 - 1971 | 2 | |
| Bradley, Jeana | Jeana Bradley | Director | 1963 | 1 | |
| Butler, Oliver | Oliver Butler | Director | 2016 - 2021 | 3 | |
| Bristow, Eugene, K. | Eugene K. Bristow | Director | 1963 | 1 | 1 |
| Bernhardt, Melvin | Melvin Bernhardt | Director | 1962 | 1 | |
| Bigseth, Thor | Thor Bigseth | Director | 1962 | 1 | |
| Bosher, Shane | Shane Bosher | Director | 2011 | 1 | 1 |
| Blondel, Jean-Christophe | Jean-Christophe Blondel | Director | 2012 - 2013 | 13 | |
| Brinkmann, Joachim | Joachim Brinkmann | Director | 1960 | 1 | |
| Bassuk, David | David Bassuk | Director | 2011 - 2013 | 2 | |
| Blyth, Benjamin | Benjamin Blyth | Director | 2013 | 1 | 1 |
| Beilharz, Manfred | Manfred Beilharz | Director | 2013 | 1 | |
| Bumbeşti, Victor | Victor Bumbeşti | Director | 1926 - 1945 | 4 | |
| Bán, Ernest | Ernest Bán | Director | 1974 | 1 | |
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