
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.
TV Shows(20)

Star Trek: Discovery
Admiral Katrina Cornwell

Revenge
Loretta Deaton

Rizzoli & Isles
Senator Valerie Bloomfield

Castle
Claudia Peterson

Eli Stone
Rebecca Green

Private Practice
Dr. Meg Porter

Brothers and Sisters
Bertha Wandell

Grey's Anatomy
Gwen Graber

Boston Legal
Rachel Lewiston

NCIS
Lyndi Crawshaw

John Doe
Jamie Avery

CSI: Miami
Mia Eckhart

Imagine That
Wendy Miller

Everwood
Mrs. Rogers

Without a Trace
Anne Atkins

The District
Mary Ann Mitchell

Early Edition
Dr. Diane Grad

Chicago Hope
Diane Grad

Sirens
Sarah Berkezchuk

WIOU
Ann Hudson