| Dowling, P. | P. Dowling | Lighting Designer | 1971 | 1 | |
| Dowling, Vincent | Vincent Dowling | Actor | 1974 | 1 | |
| Down, Gary | Gary Down | Actor | 1977 | 1 | |
| Down, Janice | Janice Down | Actor | 1963 | 2 | |
| Downar-Zapolski, Piotr | Piotr Downar-Zapolski | Actor | 2018 | 1 | |
| Downer, David | David Downer | Actor | 1977 | 1 | |
| Downes, Amory | Amory Downes | Actor | 1992 | 1 | |
| Downey, Jim | Jim Downey | Actor | 1973 | 1 | |
| Downey, Padraig | Padraig Downey | Director, Producer | 2017 | 2 | |
| Downey, Roma | Roma Downey | Actor | 1988 | 1 | 1 |
| Downie, Isobel | Isobel Downie | Actor | 1978 | 1 | |
| Downie, Penny | Penny Downie | Actor | 1997 - 2019 | 6 | 2 |
| Downing, Amy | Amy Downing | Actor | 2011 | 1 | |
| Downing, Carolyn | Carolyn Downing | Sound Designer | 2003 | 1 | |
| Downing, Vanessa | Vanessa Downing | Actor | 2006 | 2 | |
| Downs, Arnall | Arnall Downs | Costume Designer | 1985 - 1988 | 2 | |
| Downs, Tom | Tom Downs | Actor | 2003 | 1 | 1 |
| Dowsett, Brenda | Brenda Dowsett | Actor | 1978 | 1 | |
| Dowsland, Edith | Edith Dowsland | Actor | 1932 - 1933 | 2 | |
| Dowson, Fanny | Fanny Dowson | Actor | 1925 | 1 | |
| Dowson, Sam | Sam Dowson | Designer | 2012 | 1 | 1 |
| Dowty, Robert | Robert Dowty | Actor | 1948 | 1 | |
| Doxaras, Christos | Christos Doxaras | Actor | 1977 | 1 | |
| Doxsee, Lenore | Lenore Doxsee | Lighting Designer | 1992 | 1 | |
| Doyer, Truuk | Truuk Doyer | Actor | 1976 - 1982 | 18 | 1 |
| Doyle, Brian | Brian Doyle | Actor | 2006 | 1 | |
| Doyle, Cheryl | Cheryl Doyle | Director | 2000 | 1 | |
| Doyle, Collin | Collin Doyle | Actor | 2004 | 1 | 1 |
| Doyle, Jane | Jane Doyle | Actor | 2006 | 4 | |
| Doyle, Jay | Jay Doyle | Actor | 1971 | 1 | |
| Doyle, John | John Doyle | Director | 1989 - 2016 | 2 | |
| Doyle, Jolene | Jolene Doyle | Actor | 1959 | 1 | |
| Doyle, Kathleen | Kathleen Doyle | Costume Designer | 2017 | 2 | |
| Doyle, Lorna | Lorna Doyle | Actor | 2003 | 1 | |
| Doyle, Mary Alice | Mary Alice Doyle | Costume Designer | 1974 | 1 | |
| Doyle, Robert | Robert Doyle | Costume Designer, Designer | 1973 | 2 | |
| Doyle, Shawn | Shawn Doyle | Actor | 2024 | 1 | |
| Doyle, Vincent | Vincent Doyle | Actor | 1926 | 1 | |
| Dózsa, László | László Dózsa | Actor | 1971 - 1975 | 2 | |
| Dózsa, Zoltán | Zoltán Dózsa | Actor | 2002 | 1 | |
| Døcker, - | - Døcker | Actor | 1871 - 1872 | 2 | |
| Døli, Rebekka | Rebekka Døli | Actor | 2008 | 3 | |
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