| Keller, Mr. | Mr. Keller | Actor | 1895 - 1896 | 2 | |
| Keller, P. | P. Keller | Actor | 1997 | 1 | |
| Keller, Peter H. | Peter H. Keller | Actor | 1972 - 1987 | 2 | |
| Keller, Ron | Ron Keller | Designer | 1980 | 1 | |
| Keller, Rudolf | Rudolf Keller | Actor | 1913 | 1 | |
| Keller, Ruth | Ruth Keller | Costume Designer | 1985 | 1 | |
| Keller, Sarah | Sarah Keller | Actor | 2003 | 1 | |
| Keller, Tibert | Tibert Keller | Actor | 2002 | 4 | |
| Keller, Tom | Tom Keller | Actor | 2003 - 2004 | 8 | |
| Keller, Ulrich | Ulrich Keller | Actor | 2006 | 1 | |
| Keller, Virginia | Virginia Keller | Costume Designer | 1938 | 1 | |
| Kellerd, John E. | John E. Kellerd | Actor | 1904 | 1 | 1 |
| Kellerer, P. | P. Kellerer | Actor | 1997 | 1 | |
| Kellermann, Grete | Grete Kellermann | Actor | 1894 - 1898 | 2 | |
| Kellermann, Siegfried | Siegfried Kellermann | Actor | 1984 - 2003 | 44 | |
| Kellermann, Werner | Werner Kellermann | Mask Maker | 1975 - 1984 | 3 | |
| Kelley, Barry | Barry Kelley | Actor | 1932 | 1 | |
| Kelley, Byron, R. | Byron R. Kelley | Director | 1948 | 1 | |
| Kelley, Elsie | Elsie Kelley | Actor | 1940 | 2 | |
| Kelley, Heather | Heather Kelley | Actor | 2007 | 1 | |
| Kelley, Hugh | Hugh Kelley | Actor | 1965 | 2 | |
| Kelley, James | James Kelley | Actor | 1935 | 1 | |
| Kelley, Kathryn | Kathryn Kelley | Actor | 1995 | 1 | |
| Kelley, Kristen Tripp | Kristen Tripp Kelley | Actor | 2009 | 1 | |
| Kelley, Louise | Louise Kelley | Actor | 1909 | 1 | |
| Kelley, Nigel | Nigel Kelley | Actor | 2019 | 1 | |
| Kelley, Tim | Tim Kelley | Actor | 2010 | 4 | |
| Kelley, Walter, L. | Walter L. Kelley | Lighting Designer | 1913 | 1 | |
| Kelling, Coba | Coba Kelling | Actor | 1956 | 5 | |
| Kelling, Edgar | Edgar Kelling | Director | 1971 | 1 | |
| Kelling, Gerhard | Gerhard Kelling | Dramaturg, Translator | 1976 - 1985 | 4 | |
| Kelling, Walter | Walter Kelling | Actor | 1920 | 1 | |
| Kellman, Barnet | Barnet Kellman | Adaptation, Director | 1972 | 2 | |
| Kelln, Mya | Mya Kelln | Director | 2023 - 2024 | 2 | |
| Kellner, Berthold | Berthold Kellner | Actor, Director | 1997 - 2001 | 2 | |
| Kellner, Helmut | Helmut Kellner | Actor | 1991 | 3 | |
| Kellogg, Marjorie Bradley | Marjorie Bradley Kellogg | Designer | 1981 - 1990 | 2 | 1 |
| Kellosalo, Annele | Annele Kellosalo | Actor | 1996 | 1 | 1 |
| Kellosalo, Leena | Leena Kellosalo | Actor | 2002 | 1 | |
| Kellum, Rick | Rick Kellum | Actor | 1985 | 1 | |
| Kelly jr., J. | J. Kelly jr. | Actor | 1897 | 1 | |
| Kelly, Al | Al Kelly | Assistant Director | 1922 | 1 | |
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