Karen Westerfield (born 26 May 1956; age 68) is a makeup artist who worked as Beauty and Prosthetics makeup artist on Star Trek: The Next Generation (1991-1992), Star Trek: Deep Space Nine (1992-1999), Star Trek: Voyager (1994-1996 and 2000), and Star Trek: Enterprise as well as the Star Trek films Star Trek VI: The Undiscovered Country and Star Trek Nemesis. She is most well known as being the person who applied Armin Shimerman's makeup for his character Quark throughout the seven-year run of Deep Space Nine. Her first Star Trek contribution was as day player makeup artist for a Klingon character in the sixth season of The Next Generation. She previously worked as a crafts person with Michael Westmore on the 1987 fantasy film Masters of the Universe which co-starred Frank Langella, Anthony De Longis, Christina Pickles, Chelsea Field, and Robert Duncan McNeill. At the Destination Star Trek convention in Birmingham, UK on 20 October 2018, Westerfield "re-united" with Shimerman when she provided his prosthetic makeup for the first time following the end of Deep Space Nine for a photo ops with the fans. ("Behind the Masks" panel at Destination Star Trek Birmingham, 21 October 2018)
Her work on Star Trek earned her the following Emmy Award nominations and wins:
- 1992 Emmy Award for the episode "Cost Of Living", shared with Michael Westmore, Gerald Quist, Ron Walters, Jane Haymore, Bob Scribner, Ken Diaz, Richard Snell, and Tania McComas
- 1993 Emmy Award nomination for the episode "The Inner Light", shared with Michael Westmore, Gerald Quist, June Haymore, Jill Rockow, and Doug Drexler
- 1993 Emmy Award for the episode "Captive Pursuit", shared with Michael Westmore, Jill Rockow, Gilbert A. Mosko, Dean Jones, Michael Key, Craig Reardon, and Vincent Niebla
- 1994 Emmy Award nomination for the episode "Rules of Acquisition", shared with Michael Westmore, Camille Calvet, Dean Gates, Dean Jones, Tina Hoffman, David Quashnick, Mike Smithson, Hank Edds, Michael Key, and Gilbert A. Mosko
- 1995 Emmy Award for the episode "Distant Voices", shared with Michael Westmore, Camille Calvet, Dean Jones, Dean Gates, Karen Iverson, Scott Wheeler, Michael Key, David Quashnick, Gilbert A. Mosko, and Thom Surprenant
- 1997 Emmy Award nomination for the episode "Apocalypse Rising", shared with Michael Westmore, Karen Iverson, Ellis Burman, R. Stephen Weber, David Quashnick, Dean Jones, Mark Bussan, Brad Look, Belinda Bryant, James MacKinnon, Allan A. Apone, Perri Sorel, Mary Kay Morse, John Maldonado, and Lisa Collins
- 1998 Emmy Award nomination for the episode "Who Mourns for Morn?", shared with Michael Westmore, Dean Jones, Karen Iverson, Mark Bussan, Ellis Burman, Mary Kay Morse, Belinda Bryant, Joe Podnar, Suzanne Diaz, Jill Rockow, David Quashnick, and Bernd Rantscheff
- 1999 Emmy Award nomination for the episode "The Dogs of War", shared with Michael Westmore, Dean Jones, Mark Bussan, Mary Kay Morse, Ellis Burman, Belinda Bryant, Karen Iverson, Brad Look, David Quashnick, Earl Ellis, Joe Podnar, R. Stephen Weber, Jeff Lewis, Sandra Rowden, Toby Lamm, Michael F. Blake, June Westmore, Judith Silverman, Craig Smith, Kevin Haney, Suzanne Diaz, Scott Wheeler, James Rohland, Tina Hoffman, and Natalie Wood
- 2001 Emmy Award nomination for the episode "The Void", shared with Michael Westmore, Tina Hoffman, Scott Wheeler, James Rohland, Suzanne Diaz, Natalie Wood, Ellis Burman, Jeff Lewis, Brad Look, Belinda Bryant, Joe Podnar, David Quashnick, and Earl Ellis
- 2002 Emmy Award nomination for the episode "Broken Bow", shared with Michael Westmore, Art Anthony, Belinda Bryant, David DeLeon, Suzanne Diaz, Earl Ellis, Jeff Lewis, Brad Look, Joe Podnar, June Westmore, and Natalie Wood
In 1997 Westerfield received an Emmy Award nomination in the category Outstanding Makeup for a Miniseries or a Special for her work on Alien Nation: The Enemy Within, shared with Rick Stratton, Richard Snell, Craig Reardon, Janna Phillips, David Abbott, Edouard F. Henriques, and Kenny Myers and in 2005 she received another Emmy Award nomination in the category Outstanding Makeup for a Miniseries, Movie or a Special (Non-Prosthetic) for her work on Lackawanna Blue.
Beside her work on Star Trek, Westerfield also worked as makeup artist on the television comedy Carol Leifer: Gaudy, Bawdy & Blue (1992, with Gloria Ponce), Alien Nation: The Udara Legacy (1997, with David Abbott, Zoltan Elek, Carolyn Ferguson, Edouard F. Henriques, Janna Phillips, Rick Stratton, Craig Reardon, and Ellen Powell), How the Grinch Stole Christmas (2000), Town & Country (2001, with Janice Alexander, Chris McBee, Carol A. O'Connell, Heather Koontz, Barbara Ronci, and Toni-Ann Walker), Spider-Man (2002), The Polar Express (2004), Mr. & Mrs. Smith (2005), The Dead Girl (2006, with Ed French, Richard Redlefsen, and Rick Stratton), Pirates of the Caribbean: At World's End (2007), and Beowulf (2007).
She later worked as makeup artist on the television specials 13th Annual Prism Awards (2009) and 14th Annual PRISM Awards (2010) and on the television comedy Listen to Grandpa, Andy Ling (2012).