| Baskin, Roman | Roman Baskin | Director | 1997 | 1 | 1 |
| Bodenius, Carsten | Carsten Bodenius | Director | 1995 | 1 | |
| Boulanger, Susan | Susan Boulanger | Director | 1997 | 1 | 1 |
| Bechtel, Clemens | Clemens Bechtel | Director | 1996 | 1 | |
| Bogaerts, Sam | Sam Bogaerts | Director | 1995 - 2005 | 17 | |
| Babarczy, László | László Babarczy | Director | 1996 - 2005 | 3 | 1 |
| Bayer, Thomas | Thomas Bayer | Director | 1995 | 1 | 1 |
| Bocsárdi, László | László Bocsárdi | Director | 1996 | 1 | |
| Buszko, Arkadiusz | Arkadiusz Buszko | Director | 1995 | 1 | 1 |
| Blondell, John | John Blondell | Director | 1995 - 2018 | 4 | 1 |
| Baltuch, Lucien | Lucien Baltuch | Director | 1969 | 1 | 1 |
| Bratkowski, Jan | Jan Bratkowski | Director | 1969 | 2 | |
| Bleck, Zina T. | Zina T. Bleck | Director | 1998 | 1 | |
| Bennett, Ariel | Ariel Bennett | Director | 1998 | 1 | |
| Bergman, Jan | Jan Bergman | Director | 1991 | 21 | 1 |
| Brown, Arvin | Arvin Brown | Director | 1969 | 1 | |
| Brandstrup, Ole | Ole Brandstrup | Director | 1969 | 1 | |
| Boud, John | John Boud | Director | 1968 | 1 | |
| Burt, James, Henry | James Henry Burt | Director | 1967 | 1 | |
| Balikó, Tamás | Tamás Balikó | Director | 1989 | 1 | |
| Borysławska, Aniela | Aniela Borysławska | Director | 1967 | 1 | |
| Benesch, Harald | Harald Benesch | Director | 1956 - 1967 | 2 | 1 |
| Boesche, Ekkehard | Ekkehard Boesche | Director | 1966 | 1 | |
| Braun, Horst | Horst Braun | Director | 1966 | 1 | 1 |
| Baird, Claribel | Claribel Baird | Director | 1966 | 1 | 1 |
| Bogart, Paul | Paul Bogart | Director | 1966 | 1 | 1 |
| Byrska, Irena | Irena Byrska | Director | 1965 | 1 | |
| Beke, Sándor | Sándor Beke | Director | 1998 | 1 | |
| Bischoff, Thomas | Thomas Bischoff | Director | 1997 | 1 | 1 |
| Boaz, John | John Boaz | Director | 2002 | 1 | |
| Baumrin, Seth | Seth Baumrin | Director | 2002 | 1 | |
| Bruun, Alan | Alan Bruun | Director | 2002 | 1 | |
| Barnett, Robby | Robby Barnett | Director | 1997 | 1 | 1 |
| Bradu, Anca | Anca Bradu | Director | 2013 | 1 | |
| Bäck, Franz | Franz Bäck | Director | 2003 | 6 | 1 |
| Basil, John | John Basil | Director | 2001 | 1 | |
| Baumgartner, Andreas | Andreas Baumgartner | Director | 2003 | 1 | |
| Byrne, Jason | Jason Byrne | Director | 2003 | 1 | |
| Buecheler, Frank A. | Frank A. Buecheler | Director | 2004 - 2006 | 17 | 1 |
| Bethea, Kay | Kay Bethea | Director | 2004 | 1 | |
| Bruncken, Thirza | Thirza Bruncken | Director | 2000 - 2005 | 3 | 1 |
| Burian, Jan | Jan Burian | Director | 2005 - 2006 | 2 | 1 |
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