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Acting
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.
Star Trek: Discovery
as Admiral Katrina Cornwell
The Sweet Life
as Katherine
Revenge
as Loretta Deaton
Rizzoli & Isles
as Senator Valerie Bloomfield
Look at Me Again
as Tina
Castle
as Claudia Peterson
Eli Stone
as Rebecca Green
Private Practice
as Dr. Meg Porter
Brothers and Sisters
as Bertha Wandell
Grey's Anatomy
as Gwen Graber
Searching for David's Heart
as Claire Deeton, Darcy's mother
Boston Legal
as Rachel Lewiston
The Robinsons: Lost in Space
as Maureen Robinson
NCIS
as Lyndi Crawshaw
Without a Trace
as Anne Atkins
CSI: Miami
as Mia Eckhart
John Doe
as Jamie Avery
Everwood
as Mrs. Rogers
Imagine That
as Wendy Miller
The District
as Mary Ann Mitchell
My Mother the Spy
as Alison Shaeffer
Into My Heart
as Kat
Mind Games
as Hannah Berrick
Gattaca
as Marie Freeman
Early Edition
as Dr. Diane Grad
Last Dance
as Jill
Ed
as Lydia
A Brother's Promise: The Dan Jansen Story
as Jane Jansen
The Four Diamonds
as Irma Millard / Hermit of the Lagoon
Bye Bye Love
as Claire
Chicago Hope
as Diane Grad
Clean Slate
as Paula
In the Best of Families: Marriage, Pride & Madness
as Kathy
Sirens
as Sarah Berkezchuk
Doing Time on Maple Drive
as Karen
Don't Tell Mom the Babysitter's Dead
as Carolyn
Kindergarten Cop
as Zach's Mother
WIOU
as Ann Hudson
The Endless Game
Superman IV: The Quest for Peace
as Teacher - JFK High School
