Jayne Brook (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.
2017Star Trek: DiscoveryTV showas Katrina Cornwell · 12 episodes
2017The Sweet LifeMovieas Katherine2011RevengeTV showas Loretta Deaton · 1 episodes2010Rizzoli & IslesTV showas Senator Valerie Bloomfield · 1 episodes2009CastleTV showas Claudia Peterson · 1 episodes
2008Eli StoneTV showas Rebecca Green · 1 episodes2007Private PracticeTV showas Dr. Meg Porter · 5 episodes2006Brothers and SistersTV showas Bertha Wandell · 3 episodes2005Grey's AnatomyTV showas Gwen Graber · 1 episodes
2004Searching for David's HeartMovieas Claire Deeton, Darcy's mother2004Boston LegalTV showas Rachel Lewiston · 4 episodes
2004The Robinsons: Lost in SpaceMovieas Maureen Robinson2003NCISTV showas Lyndi Crawshaw · 1 episodes2002Without a TraceTV showas Anne Atkins · 1 episodes2002CSI: MiamiTV showas Mia Eckhart · 1 episodes2002John DoeTV showas Jamie Avery · 21 episodes2002EverwoodTV showas Mrs. Rogers · 2 episodes
2002Imagine ThatTV showas Wendy Miller · 7 episodes
2000The DistrictTV showas Mary Ann Mitchell · 23 episodes
2000My Mother the SpyMovieas Alison Shaeffer
1998Sports NightTV showas Abby Jacobs · 4 episodes
1998Into My HeartMovieas Kat
1998Mind GamesMovieas Hannah Berrick1997GattacaMovieas Marie Freeman1996Early EditionTV showas Dr. Diane Grad · 1 episodes1996Last DanceMovieas Jill1996EdMovieas Lydia
1996A Brother's Promise: The Dan Jansen StoryMovieas Jane Jansen
1995The Four DiamondsMovieas Irma Millard / Hermit of the Lagoon
1995Bye Bye LoveMovieas Claire
1994Chicago HopeTV showas Diane Grad · 103 episodes
1994Clean SlateMovieas Paula
1994In the Best of Families: Marriage, Pride & MadnessMovieas Kathy
1993SirensTV showas Sarah Berkezchuk · 13 episodes
1992Doing Time on Maple DriveMovieas Karen1991Don't Tell Mom the Babysitter's DeadMovieas Carolyn1990Kindergarten CopMovieas Zach's Mother
1990WIOUTV showas Ann Hudson · 13 episodes
1989The Endless GameMovie1987Superman IV: The Quest for PeaceMovieas Teacher - JFK High School