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.
Kindergarten Cop
Zach's Mother
Gattaca
Marie Freeman
Clean Slate
Paula
My Mother the Spy
Alison Shaeffer
The Robinsons: Lost in Space
Maureen Robinson
Into My Heart
Kat
Searching for David's Heart
Claire Deeton, Darcy's mother
Ed
Lydia
The Four Diamonds
Irma Millard / Hermit of the Lagoon
Last Dance
Jill
Don't Tell Mom the Babysitter's Dead
Carolyn
In the Best of Families: Marriage, Pride & Madness
Kathy
Mind Games
Hannah Berrick
A Brother's Promise: The Dan Jansen Story
Jane Jansen
The Sweet Life
Katherine
Doing Time on Maple Drive
Karen
Superman IV: The Quest for Peace
Teacher - JFK High School
Bye Bye Love
Claire