| Howe, Bob | Bob Howe | Actor | 1968 | 1 | |
| Howe, Dagmar, | Dagmar Howe | Actor | 1950 | 1 | |
| Howe, Helen | Helen Howe | Actor | 1930 | 1 | |
| Howe, James G., | James G. Howe (James G. Howe) | Actor | 1908 | 1 | |
| Howe, Patrick | Patrick Howe | | | | 4 |
| Howe, W. D., | W. D. Howe (W. D. Howe) | Actor | 1905 | 1 | |
| Howe, Walter, | Walter Howe | Actor | 1906 - 1907 | 3 | |
| Howell, Andrew | Andrew Howell | Actor | 2005 | 1 | |
| Howell, Anthony | Anthony Howell | Actor | 2008 | 2 | |
| Howell, Cam | Cam Howell | Actor | 2012 | 1 | |
| Howell, Gary | Gary Howell | Actor | 2007 | 1 | |
| Howell, Isabel, | Isabel Howell | Actor | 1906 - 1907 | 3 | |
| 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 - 2013 | 2 | |
| Howell, Rob | Rob Howell | Designer | 1996 - 2016 | 9 | |
| 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 | |
| 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 | |
| Hoydal, Annika | Annika Hoydal | Actor | 1981 | 1 | |
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