| Howell, John | John Howell | Actor | 1922 | 2 | |
| Howell, Kathryn S. | Kathryn S. Howell | Actor | 1933 | 1 | |
| Howell, Marg | Marg Howell | Designer | 2014 | 1 | |
| Howell, Martin | Martin Howell | Actor | 2019 | 1 | |
| Howell, Michael W. | Michael W. Howell | Actor | 2006 | 1 | |
| Howell, Patrick | Patrick Howell | Actor | 2012 | 1 | |
| Howell, Richard | Richard Howell | Lighting Designer | 2012 - 2024 | 3 | |
| Howell, Rob | Rob Howell | Designer | 1996 - 2016 | 9 | 1 |
| Howells, Alison | Alison Howells | Actor | 2001 | 1 | |
| Howells, Dafydd Gwyn | Dafydd Gwyn Howells | Actor | 2005 - 2006 | 3 | |
| Howells, Martin | Martin Howells | Actor | 1978 | 1 | |
| Howenstein, Ralph | Ralph Howenstein | Actor | 1935 | 1 | |
| Howes, Linda | Linda Howes | Actor | 1972 | 1 | |
| Howey, William, D. | William D. Howey | Actor | 1965 | 1 | |
| Howk, Randy | Randy Howk | Actor | 1990 | 1 | |
| Howland, C.A. | C. A. Howland (C.A. Howland) | Actor | 1909 | 2 | |
| Howland, Mark | Mark Howland | Lighting Designer | 2012 | 1 | 1 |
| Howland, Mr. | Mr. Howland | Actor | 1922 | 1 | |
| Howle, Billy | Billy Howle | | | | |
| Howlett, Emma | Emma Howlett | Actor | 2017 | 4 | |
| Howlett, Marc-Vincent | Marc-Vincent Howlett | Dramaturg | 1993 | 1 | |
| Howlett, Margaret | Margaret Howlett | Actor | 1960 | 1 | |
| Howlett, Noel | Noel Howlett | Actor | 1947 | 1 | |
| Howlett, Stanley | Stanley Howlett | Actor | 1923 - 1930 | 4 | |
| Howlin, Orin | Orin Howlin | Actor | 1946 | 1 | |
| Howson, Frank | Frank Howson | Actor | 1928 | 1 | |
| Howson, Hazel | Hazel Howson | Actor | 1979 | 1 | |
| Howvert, Roman | Roman Howvert | Actor | 1929 | 1 | |
| Hox, Karin | Karin Hox | Actor | 1966 - 1993 | 41 | 1 |
| Hoxha, Medina | Medina Hoxha (Медина Хоџа) | Costume Designer | 2022 | 1 | |
| Hoydal, Annika | Annika Hoydal | Actor | 1981 | 1 | |
| Hoye, Stephen | Stephen Hoye | Actor | 1975 | 1 | |
| Hoyle, Alistair | Alistair Hoyle | Actor | 2016 | 1 | |
| Hoyle, David | David Hoyle | Actor | 2022 | 1 | |
| Hoyle, Sue | Sue Hoyle | Actor | 1972 | 1 | |
| Hoyle, Tim | Tim Hoyle | Actor | 2013 | 1 | |
| Hoynes, Richard | Richard Hoynes | Dancer | 1989 - 1990 | 2 | |
| Hoyo, Pablo | Pablo Hoyo | Actor | 1969 | 1 | |
| Hoyt, Sophie | Sophie Hoyt | Actor | 2018 | 1 | |
| Hozian, Ray | Ray Hozian | Actor | 1973 | 1 | |
| Hozová, Slávka | Slávka Hozová | Actor | 1993 | 1 | |
| Høeberg, Georg | Georg Høeberg | Composer, Musical Director | 1913 - 1928 | 2 | |
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