Jayne Brook
Biography
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.
Also Known As
Movie Appearances

Kindergarten Cop
as Zach's Mother
1990

Gattaca
as Marie Freeman
1997

Clean Slate
as Paula
1994

My Mother the Spy
as Alison Shaeffer
2000

The Robinsons: Lost in Space
as Maureen Robinson
2004

Into My Heart
as Kat
1998

Searching for David's Heart
as Claire Deeton, Darcy's mother
2004

Ed
as Lydia
1996

The Four Diamonds
as Irma Millard / Hermit of the Lagoon
1995

Last Dance
as Jill
1996

Don't Tell Mom the Babysitter's Dead
as Carolyn
1991

In the Best of Families: Marriage, Pride & Madness
as Kathy
1994

Mind Games
as Hannah Berrick
1998

A Brother's Promise: The Dan Jansen Story
as Jane Jansen
1996

The Sweet Life
as Katherine
2017

Doing Time on Maple Drive
as Karen
1992

Superman IV: The Quest for Peace
as Teacher - JFK High School
1987

Bye Bye Love
as Claire
1995
Look at Me Again
as Tina
2010

The Endless Game
1989
TV Appearances

Castle
as Claudia Peterson
2009

The District
as Mary Ann Mitchell
2000

John Doe
as Jamie Avery
2002

CSI: Miami
as Mia Eckhart
2002

NCIS
as Lyndi Crawshaw
2003

Chicago Hope
as Diane Grad
1994

WIOU
as Ann Hudson
1990

Sirens
as Sarah Berkezchuk
1993

Imagine That
as Wendy Miller
2002

Rizzoli & Isles
as Senator Valerie Bloomfield
2010

Brothers and Sisters
as Bertha Wandell
2006

Grey's Anatomy
as Gwen Graber
2005
