Jayne Brook

Jayne Brook (born Jane Anderson) (born September 16, 1960) is an American actress, best known for her roles as Dr. Diane Grad on the medical drama Chicago Hope, as a series regular for five of the show's six seasons, and Mary Ann Mitchell on The District from 2000 to 2002. Between 2017 and 2019, Brook had a recurring role as Starfleet Vice Admiral Katrina Cornwell in the series Star Trek: Discovery.

Early life Brook was born in Northbrook, Illinois. She graduated from Glenbrook North High School in 1978. She attended New College in Oxford, England, and Duke University on scholarship, earning a bachelor's degree in 1982. Brook is married to actor and director John Terlesky. They have two daughters.

Career Brook had acted in Britain's regional theatres and in London before she went to Los Angeles to begin acting on TV.

Her first acting role was in the film Superman IV: The Quest for Peace in 1987. During the late 1980s, she worked for a while in Great Britain, appearing in The Old Boy Network, a single season ITV comedy series about three ex-spies who set up as private investigators after the end of the Cold War.

Brook went on to appear in numerous film and television roles, such as Carolyn in the 1991 film Don't Tell Mom the Babysitter's Dead, a starring role in the spring 1993 ABC network version of Sirens. a guest star for a three-episode arc of L.A. Law and in the 1995 film Bye Bye Love. She also had a small part as a child's mother in Kindergarten Cop (1990). She had a major role in My Mother, the Spy (2000).

Her starring role in the ensemble cast of Chicago Hope, from 1994 to 1999, was followed by appearances in regular or recurring roles on such series as Sports Night, The District, John Doe, Boston Legal and Private Practice. Brook has been a guest star in single episodes of other series, including reuniting with her former Chicago Hope co-star Mark Harmon in a 2007 episode, "Cover Story", of his CBS television series NCIS.

From 2017 to 2019, Brook had a recurring role as Starfleet Admiral Katrina Cornwell on the first two seasons of Star Trek: Discovery.

Filmography

+Film Year Title Role Notes 1987 Superman IV: The Quest for Peace JFK High School Teacher 1990 Kindergarten Cop Mrs. Sullivan 1991 Don't Tell Mom the Babysitter's Dead Carolyn 1994 Clean Slate Paula 1995 Bye Bye Love Claire Carson 1996 Ed Lydia 1996 Last Dance Jill 1997 Gattaca Marie Freeman 1998 Into My Heart Kat 2000 Chain of Command Connelly's Ex-Wife Uncredited 2017 The Sweet Life Katherine

+Television Year Title Role Notes 1990 The Endless Game Mrs. Glazer Television film 1990 Equal Justice Bonnie Ehlman Episode: "The Price of Justice" 1990–1991 WIOU Ann Hudson 14 episodes 1992 Doing Time on Maple Drive Karen Television film 1992 The Old Boy Network Parker Morrow 4 episodes 1993 Sirens Officer Sarah Berkezchuk 13 episodes 1993 L.A. Law Beverly Halleran 3 episodes 1994 In the Best of Families: Marriage, Pride & Madness Kathy Television film 1995 Irma Millard / Hermit of The Lagoon Television film 1995–1999 Chicago Hope Dr. Diane Grad 103 episodes 1996 A Brother's Promise: The Dan Jansen Story Jane Jansen Television film 1998 Early Edition Dr. Diane Grad Episode: "Mum's the Word" 1998 Mind Games Hannah Berrick Television film 1999–2000 Sports Night Abby Jacobs 4 episodes 2000 Chicken Soup for the Soul Teacher Episode: "Footprints on My Heart/Legacy/Elopement" 2000 My Mother, the Spy Alison Shaeffer Television film 2000–2002 Mary Ann Mitchell 14 episodes 2002 Imagine That Wendy 6 episodes 2002–2003 John Doe Jamie Avery 21 episodes 2003 Without a Trace Ms. Atkins Episode: "The Bus" 2004 Maureen Robinson Television film 2004 CSI: Miami Mia Eckhart Episode: "Legal" 2004 Jack & Bobby Susan Kramer Episode: "Lost Boys" 2004 Searching for David's Heart Claire Deeton Television film 2005 Everwood Mrs. Rogers Episodes: "Pro Choice""So Long, Farewell..." 2006 Grey's Anatomy Gwen Graber Episode: "Blues for Sister Someone" 2006 Boston Legal Rachel Lewiston 4 episodes 2007 NCIS Lyndi Crawshaw Episode: "Cover Story" 2008 Eli Stone Rebecca Green Episode: "Soul Free" 2008 Private Practice Dr. Meg Porter 5 episodes 2008–2011 Brothers & Sisters Bertha Wandell Episodes: "Prior Commitments""You Get What You Need""Never Say Never" 2009 Castle Claudia Peterson Episode: "Nanny McDead" 2009 Michelle Durham Episode: "Hello America" 2011 Off the Map Lynn Episodes: "It's Good""Es Un Milagro" 2012–2018 Major Crimes Vicky Landon Episodes: Conspiracy Theory: Part 1, Conspiracy Theory: Part 2, Conspiracy Theory: Part 3, Conspiracy Theory: Part 4 2014 Revenge Loretta Deaton Episode: "Hatred" 2014 Rizzoli & Isles Senator Valerie Bloomfield Episode: "You're Gonna Miss Me When I'm Gone" 2017–2019 Star Trek: Discovery Admiral Katrina Cornwell 12 episodes