Margery Simkin (born December 1952; age 71) is the casting director of Star Trek: Discovery and Star Trek: Strange New Worlds alongside Orly Sitowitz.
M. Simkin was named after her on the dedication plaque of the USS Shenzhou.
Simkin has been a prominent casting director in Hollywood since the 1980s. She worked on several acclaimed and popular films such as Beverly Hills Cop (1984, with Ronnie Cox, Steven Berkoff, Jonathan Banks, Michael Champion, Doug Warhit, and Danny Nero), Top Gun (1986, with Danny Nero), Little Shop of Horrors (1986, with Edward Wiley), The Adventures of Baron Munchausen (1988), Field of Dreams (1989), Mermaids (1990), Richie Rich (1994, with John Larroquette, Rick Worthy, and Frank Welker), 12 Monkeys (1995, with Christopher Plummer and Frank Gorshin), Dragonheart (1996, with Dina Meyer, Jason Isaacs, and Brian Thompson), Daylight (1996, with Mark Rolston and Rosemary Forsyth), Fear and Loathing in Las Vegas (1998, with Richard Riehle, Ransom Gates, Steven R. Schirripa, Gregory Itzin, Jenette Goldstein, and Lisa Hoyle), Erin Bronkovich (2000, with Scarlett Pomers, William Lucking, Wade Andrew Williams, and Tracey Walter), Evolution (2001, with Gregory Itzin, Sarah Silverman, and John Cho), The Score (2001), Death to Smoochy (2002, with Vincent Schiavelli and Tracey Walter), Duplex (2003, with Wallace Shawn and Chris Doyle), XXX: State of the Union (2005), Avatar (2009, starring Zoë Saldana, with Scott Lawrence), Pacific Rim (2013, starring Idris Elba, with Clifton Collins, Jr., Ron Perlman, Brad William Henke, Milton Barnes, Jimmy Chimarios, and Phi Huynh), and Avatar: The Way of Water (2022, again starring Zoë Saldana).
In 2017, Simkin worked on the first season of American Gods with showrunner Bryan Fuller. She also did the casting for the series Into the Badlands (2015), and Y: The Last Man (2021).